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Ac

Definition: Ac

Ac

Noun

1. A radioactive element of the actinide series; found in uranium ores.

2. An electric current that reverses direction sinusoidally; "In the US most household current is AC at 60 cycles per second".

Source: WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved.

Date "Ac" was first used in popular English literature: sometime before 1550. (references)

Specialty Definition: Ac

Domain	Definition
Agriculture	Area conservationist. (references)
Space	Alternating current. (references)
Weather	Of the transmitted product. See SWODY1, SWODY2. (references)
Source: compiled by the editor from various references; see credits.

Specialty Definition: AC

(From Wikipedia, the free Encyclopedia)

In electricity, AC is the abbrevation of alternating current.
AC is an automobile brand, see AC Cars
AC can refer to an Anonymous Coward on Slashdot.
AC can also means ante christum, that is to say before Christ
AC refers to a chemotherapy regime comprising adriamycin and cyclophosphamide
Ac is the chemical symbol for actinium

Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "AC."

AC Cars

(From Wikipedia, the free Encyclopedia)

AC Cars Group Ltd. is a British specialist car manufacturing company and one of the oldest independent car marques in Britain. Based in Weybridge, Surrey (see also British motor industry).
It began as Weller Brothers in 1901, becoming Autocarriers Ltd in 1909 and using the 'AC' logo. The company moved to Thames Ditton, Surrey in 1911 and grew into a substantial car manufacturer. In 1930 the company was bought by the Hurlock family.
In 1951 the firm began production of the AC Ace, a lightweight chassis with a Bristol six-cylinder engine the car raced at Le Mans in 1957 and 1958. When the company lost access to the Bristol engine in 1961 the owner, Charles Hurlock, was approached by Carroll Shelby to use a Ford V8 in the Ace chassis, producing the AC Cobra in 1962. The Cobra was a dangerously over-powered roadster, its speed exploits were directly responsible for the introduction of the 70 mph limit on British motorways. The Cobra was sold to Ford in 1965 and production of the original ended in 1969.
The company was sold to Ford and Autokraft in 1986 and became AC Car Group. The group was sold again in 1993 and went into receivership in 1996 but was rescued from administration, as AC Car Group Ltd, and continued car production.

Links

http://www.accars.co.uk
http://dmoz.org/Recreation/Autos/Makes_and_Models/AC/
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "AC Cars."

Actinium

(From Wikipedia, the free Encyclopedia)

, Period, Block3 , 7 , f Density, Hardness 10070 kg/m³, n/a Appearance silvery Atomic Properties Atomic weight (227) amu Atomic radius (calc.) 195 (n/a) pm Covalent radius n/a pm van der Waals radius n/a pm Electron configuration [Rn]6d6d¹7s² e^- 's per energy level 2, 8,18,32,18, 9, 2 Oxidation states (Oxide) 3 (neutral) Crystal structure face centered cubic Physical Properties State of matter solid (__) Melting point 1323 K (1922 °F) Boiling point 3473 K (5792 °F) Molar volume 22.55 ×1010^-3 m³/mol Heat of vaporization n/a kJ/mol Heat of fusion 62 kJ/mol Vapor pressure unknown Pa at 1323 K Velocity of sound unknown m/s at 293.15 K Miscellaneous Electronegativity 1.1 (Pauling scale) Specific heat capacity unknown J/(kg*K) Electrical conductivity unknown 10⁶/m ohm Thermal conductivity 12 W/(m*K) 1^st ionization potential 499 kJ/mol 2^nd ionization potential 1170 kJ/mol 3^rd ionization potential unknown kJ/mol 4^th ionization potential unknown kJ/mol Most Stable Isotopes

iso NA half-life DM DE MeV DP

²²⁵Ac {syn.} 10 days α 5.935 ²²¹Fr

²²⁶Ac {syn.} 29.37 hours β^- 1.117 ²²⁶Th

²²⁶Ac {syn.} 29.37 hours e capture 0.640 ²²⁶Ra

²²⁶Ac {syn.} 29.37 hours α 5.536 ²²²Fr

²²⁷Ac 100 % 21.773 years β^- 0.045 ²²⁷Th

²²⁷Ac 100 % 21.773 years α 5.042 ²²³Fr

SI units & STP are used except where noted. Actinium is a chemical element in the periodic table that has the symbol Ac and atomic number 89.

Notable Characteristics
Actinium is a silvery radioactive metallic element. Actinium glows in the dark due to its intense radioactivity with an eerie blue light. It is found only in traces in uranium ores as 227-Ac, an &alpha and β emitter with a half-life of 21.773 years. One ton of uranium ore contains about a tenth of a gram of actinium.

Applications
It is about 150 times as radioactive as radium, making it valuable as a neutron source. Otherwise it has no significant industrial applications.
Actinium-225 is used in medicine to produce Bi-213 in a reusable generator or can be used alone as an agent for radio-immunotherapy.

History
Actinium was discovered in 1899 by André-Louis Debierne, a French chemist, who separated it from pitchblende. Friedrich Otto Giesel independently discovered actinium in 1902. The chemical behavior of actinium is similar to that of the rare earth lanthanum.
The word actinium comes from the Greek aktis, aktinos, meaning beam or ray.

Occurrence
Actinium is found in trace amounts in uranium ore, but more commonly is made in milligram amounts by the neutron irradiation of 226-Ra in a nuclear reactor. Actinium metal has been prepared by the reduction of actinium fluoride with lithium vapor at about 1100 to 1300-degrees C.

Compounds

Isotopes
Naturally occurring actinium is composed of 1 radioactive isotope; with 227-Ac being the most abundant (100% natural abundance). 27 radioisotopes have been characterized with the most stable being 227-Ac with a half-life of 21.773 years, 225-Ac with a half-life of 10 days, and 226-Ac with a half-life of 29.37 hours. All of the remaining radioactive isotopes have half-lifes that are less than 10 hours and the majority of these have half lifes that are less than 1 minute. This element also has 2 meta states.
Purified actinium-227 comes into equilibrium with its decay products at the end of 185 days, and then decays according to its 21.773-year half-life.
The isotopes of actinium range in atomic weight from 206 amu (206-actinium) to 234 amu (234-actinium).

Precautions
Actinium-227 is extremely radioactive, and in terms of its potential for radiation induced health effects, actinium-227 is about as dangerous as plutonium. Ingesting even small amounts of actinium-227 would represent a serious health hazard.

External Links

WebElements.com - Actinium
EnvironmentalChemistry.com - Actinium
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Actinium."

Alternating current

(From Wikipedia, the free Encyclopedia)

Alternating current (AC) is electric current which repeatedly changes polarity from negative to positive and back again. The most commonly used form of alternating current does so in a sine wave pattern.
Alternating-current electric power is a form of electrical energy that uses alternating currents to supply electricity commercially as electric power. William Stanley Jr designed one of the first practical coils to produce alternating currents. His design was an early precursor of the modern transformer, called an induction coil. The present system used today was originally devised by Nikola Tesla in 1882 and overcomes the limitations imposed by using direct current, as found in the system that Thomas Edison first used to distribute electricity commercially. The first long-distance transmission of alternating current took place in 1891 near Telluride, Colorado, followed a few months later in Germany. Thomas Edison strongly advocated the use of direct current (DC), having many patents in that technology, but eventually alternating current came into general use. Charles Proteus Steinmetz of General Electric solved many of the problems associated with electricity generation and transmission using alternating current.
Unlike DC, AC can be stepped up by a transformer to a higher voltage. Because of Ohm's law, electrical energy losses are dependent on current flow, not on energy flow. By using transformers, the voltage of the power can be stepped up to a high voltage so that the power may be distributed over long distances at low currents and hence low losses. The voltage can then be stepped down again so that it is safe for domestic supply.
Three-phase electrical generation is very common and is a more efficient use of conductors. Three-phase electricity distribution is common only in industrial premises and many industrial electric motors are designed for it. Three current waveforms are produced that are 120 degrees out of phase with each other. At the load end of the circuit the return legs of the three phase circuits can be coupled together at the neutral point, where the three currents sum to zero. This means that the currents can be carried using only three cables, rather than the six that would otherwise be needed. Three phase power is a kind of polyphase system.
In many situations only a single phase is needed to supply street lights or residential consumers. When distributing three-phase electric power, a fourth or neutral cable is run in the street distribution to provide a complete circuit to each house. Different houses in the street are placed on different phases of the supply so that the load is balanced, or spread evenly, across the three phases when a lot of consumers are connected.
For safety, a fifth wire is often connected between the individual electrical appliances in the house and the main electric switchboard or fusebox. The fifth wire is known in Britain and most other English-speaking countries as the earth wire, whereas in America it is the ground wire. At the main switchboard the earth wire is connected to the neutral wire and also connected to an earth stake or other convenient earthing point (to Americans, the "grounding point") such as a water pipe. In the event of a fault, the earth wire can carry enough current to blow a fuse and isolate the faulty circuit. The earth connection also means that the surrounding building is at the same voltage as the neutral point and prevents a person from receiving an electric shock from the appliance. As many parts of the neutral system are connected to the earth, balancing currents, known as earth currents, may flow between the generator and the consumer and other parts of the system, which are also earthed, to keep the neutral voltage at a safe level. This system of earthing the neutral point to balance the current flows for safety reasons is known as a multiple earth neutral system.
Mathematics of AC voltages
Alternating currents are usually associated with alternating voltages. An AC voltage v can described mathematically as a function of time by the following equation:

where
A is the amplitude in volts (also called the peak voltage),
ω is the angular frequency in radians/second, and
t is the time in seconds.

Since angular frequency is of more interest to mathematicians than to engineers, this is commonly rewritten as:

where
f is the frequency in hertz.

The peak-to-peak value of an AC voltage is defined as the difference between its positive peak and its negative peak. Since the maximum value of sin(x) is +1 and the minimum value is -1, an AC voltage swings between +A and -A. The peak-to-peak voltage, written as V_P-P, is therefore (+A)-(-A) = 2×A.
The size of an AC voltage is also sometimes stated as a root mean square (rms) value, written V_rms. For a sinusoidal voltage:

V_rms is useful in calculating the power consumed by a load. If a DC voltage of V_DC delivers a certain power P into a given load, then an AC voltage of V_rms will deliver the same power P into the same load if V_rms = V_DC.
To illustrate these concepts, consider the 240 V AC mains used in the UK. It is so called because its rms value is (at least nominally) 240 V. This means that it has the same heating effect as 240 V DC. To work out its peak voltage (amplitude), we can modify the above equation to:

For our 240 V AC, the peak voltage V_P-P or A is therefore 240 V × √2 = 339 V (approx.). The peak-to-peak value of the 240 V AC mains is even higher: 2 × 240 V × √2 = 679 V (approx.)
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Alternating current."

Astatine

(From Wikipedia, the free Encyclopedia)

General

Name, Symbol, Number Astatine, At, 85

Series Halogens

Group, Period, Block 17 (VIIA), 6 , p

Density, Hardness no data, no data

Appearance metallic

Atomic Properties

Atomic weight [210] amu

Atomic radius no data

Covalent radius 127 pm

van der Waals radius no data

Electron configuration [Xe]44f¹⁴ 5d¹⁰ 6s² 6p⁵

e^- 's per energy level 2, 8, 18, 32, 18, 7

Oxidation states (Oxide) ±1,3,5,7 (unknown)

Crystal structure no data

Physical Properties

State of matter solid

Melting point 575 K (576 °F)

Boiling point no data

Molar volume no data

Heat of vaporization no data

Heat of fusion 114 kJ/mol

Vapor pressure no data

Speed of sound no data

Miscellaneous

Electronegativity 2.2 (Pauling scale)

Specific heat capacity no data

Electrical conductivity no data

Thermal conductivity 1.7 W/(m*K)

1^st ionization potential 20 kJ/mol

Most Stable Isotopes

iso NA half-life DM DE MeV DP

²¹⁰At 100% 8.1 h Epsilon
Alpha 3.981
5.631 ²¹⁰Po
²⁰⁶Bi

SI units & STP are used except where noted.

Astatine is a chemical element in the periodic table that has the symbol At and atomic number 85. This radioactive element occurs naturally from uranium and thorium decay and is the heaviest of the halogens.

Notable Characteristics
This highly radioactive element has been confirmed by mass spectrometers to behave chemically much like other halogens, especially iodine (it probably accumulates in the thyroid gland like iodine). Astatine is thought to be more metallic than iodine. Researchers at the Brookhaven National Laboratory have performed experiments that have identified and measured elementary reactions that involve astatine.
The total amount of astatine in the earth's crust is estimated to be less than 1 oz (28 g) at any one time.
History
Astatine (Greek astatos meaning "unstable") was first synthesized in 1940 by Dale Corson, K.R. MacKenzie, and Emilio Segre of the University of California by barraging bismuth with alpha particles.
Occurrence
Astatine is produced by bombarding bismuth with energetic alpha particles to obtain relatively long-lived At-209 - At-211, which can then be distilled from the target by heating in the presence of air.
Isotopes
Astatine has about 20 known isotopes, all of which are radioactive; the longest-lived isotope is ²¹⁰At which has a half-life of only 8.3 hours. Astatine is a halogen and possibly accumulates in the thyroid like iodine.

External Links

WebElements.com - Astatine
EnvironmentalChemistry.com - Astatine
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Astatine."

List of people by name: Ac

(From Wikipedia, the free Encyclopedia)

List of people by name: A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z Aa - Ab - Ac - Ad - Ae - Af - Ag - Ah - Ai - Aj - Ak - Al - Am - An - Ao - Ap - Aq - Ar - As - At - Au - Av - Aw - Ax - Ay - Az
Acacius, Patriarch, patriarch of Constantinople
Acaries, Louis, boxer, former world title challenger, now promoter
Achard, Marcel, (1899-1974), playwrighter and scriptwriter
Achebe, Chinua, (b.1930), nigerian writer
Acheson, Dean, (1893-1971), USA Secretary
Achillas of Alexandria, (d.313), Coptic Pope, Patriarch of Alexandria
Acker, Kathy, (1947-1997), author
Ackerman, Forrest J, (b.1916), US science fiction author
Ackermann, Wilhelm, (1896-1962), mathematician
Ackroyd, Peter, (b.1949), English author, novelist
Aconcagua (musician)
Acorn, Milton, (1923-1986), poet
Acosta, Uriel, (1585-1640), philosopher
Acton, Loren, (b.1936), US astronaut
Acuff, Roy, musician
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "List of people by name: Ac."

Abbreviations & Acronyms: Ac

The following table is compiled from various sources, across various languages. When English abbreviations or acronyms come from a non-English source, this is noted.
Entry	Source	Expression	Field
Ac	Danish	Aktinium	Chemistry
AC	Dutch	Ambtenaren Centrale	N/A
AC	English	Accommodative convergence	N/A
AC	French	Accord de confirmation	N/A
AC	Greek	συγκεντρωτής προσβάσεων	Electrical Engineering, Post & Telecom
Ac	Italian	Attinio	Chemistry
Ac	Portuguese	Actínio	Chemistry
Ac	Spanish	Actinio	Chemistry
Ac.,Ac.	English	Acid	Chemistry, Chemical Industry
Ac p18	French	Anticorps anti-p18	Medicine
Unidad AC	Spanish	Unidad de activación de conexiones	Computing
ACNAT	English	Ac tion by the Community relating to nat ure conservation	Food & Agriculture, Environment
Source: compiled by the editor, based on several corpora (additional references).

Synonyms: Ac

Synonyms: actinium (n), alternating current (n), atomic number 89 (n). (additional references)

Antonym: direct current (n). (additional references)

Synonyms within Context: Ac

Context	Synonyms within Context (source: adapted from Roget's Thesaurus).
Activity	Phrase: carpe diem; (opportunity); nulla dies sine linea; nec mora nec requies; the plot thickens; No sooner said than done; (early); "veni vidi vici"; catch a weasel asleep; abends wird der Faule fleissig; dictum ac factum; schwere Arbeit in der Jugend ist sanfte Ruhe im Alter; "the busy hum of men ".
Beauty	Phrase: auxilium non leve vultus habet; "beauty born of murmuring sound"; "flowers preach to us if we will hear"; gratior ac pulchro veniens in corpore virtus; "none but the brave deserve the fair"; "thou who hast the fatal gift of beauty".
Source: adapted from Roget's Thesaurus.

Crosswords: Ac

English words defined with "Ac": alternating current ♦ Distributive operation ♦ One-valued function ♦ var, Vector addition, volt-ampere. (references)

Specialty definitions using "Ac": AC signaling, AC signalling, aftappet mÃ¦ngde, alternating-current signaling, alternating-current signalling, Axiom of Choice ♦ carbonitriding, Convective Outlook ♦ DNA Transposable Elements ♦ Hunting two Hares ♦ impedance-matching tap, Intersil 6100 ♦ Onslow ♦ Power Conditioning ♦ saturable transformer, SCPI Consortium ♦ uninterruptible power supply ♦ watermerk. (references)

Non-English Usage: "Ac" is also a word in the following languages with English translations in parentheses.

Italian (accent), Latin (and, and also, and besides), Romanian (goad, needle, pinnacle, spindle, spur, sting, style, switch), Welsh (and).

Modern Usage: Ac

Domain	Usage
Lyrics	No AC, Tez'll break a sweat just tryin to make beats (Awnaw; performing artist: Nappy Roots) Let the AC breeze, explain to my dames how the gamin be (Firm All Stars; performing artist: The Firm)
Movie/TV Titles	Jozef Ac - daleka putovanja (1988)
Source: compiled by the editor from various references; see credits.

Commercial Usage: Ac

Domain	Title
References	The World Market for AC Electric Motors with Output Exceeding 37.5 w: A 2004 Global Trade Perspective (reference) (more reference examples)

Books	AC Cobra The Truth Behind the Anglo-American Legend (reference) OrCAD PSpice for Windows, Volume I: DC and AC Circuits (3rd Edition) (reference) Refrigeration & AC Technology (reference) (more book examples)

Periodicals	Ac Flyer (reference) (more periodical examples)

High Tech	Digipower AC Adapter for 3 Volt Fuji FinePix Digital Cameras(4700, 40i, 2600, A101, A202) (reference) Game Boy Color AC Adapter (reference) GameBoy Advance AC Adapter Set (reference) Mad Catz Rechargeable Power Pack: Battery and AC Adapter (reference) Yamaha DD35AD Touch-Sensitive Digital Drums with Guide Lights and AC Adapter (reference) (more camera examples; more video game examples; more computer examples; more electronic examples; more software examples)

Consumer Goods	Zelco Booklight AC Adapter (reference) (more baby examples; more wireless phone examples; more garden examples; more kitchen examples; more tool examples)
Source: compiled by the editor from various references; see credits.

Image Slideshow: Ac

Photo Album: Ac

Thumbnail	Description & Credit	Thumbnail	Description & Credit
	Image #1 of sequence - A decorative wind rose in: Philosophi ac medici.... by Fabrizio Padovani, 1601. P. 14. Call Number QC931.P32 1601. Credit: Treasures of the Library.		Image #2 of sequence - A decorative wind rose in: Philosophi ac medici.... by Fabrizio Padovani, 1601. P. 17. Call Number QC931.P32 1601. Credit: Treasures of the Library.
	Image #9 of sequence - A decorative wind rose in: Philosophi ac medici.... by Fabrizio Padovani, 1601. P. 28. Call Number QC931.P32 1601. Credit: Treasures of the Library.		Image #10 of sequence - A decorative wind rose in: Philosophi ac medici.... by Fabrizio Padovani, 1601. P. 29. Call Number QC931.P32 1601. Credit: Treasures of the Library.
	Image #11 of sequence - A decorative wind rose in: Philosophi ac medici.... by Fabrizio Padovani, 1601. P. 30. Call Number QC931.P32 1601. Credit: Treasures of the Library.		Image #12 of sequence - A decorative wind rose in: Philosophi ac medici.... by Fabrizio Padovani, 1601. P. 33. Call Number QC931.P32 1601. Credit: Treasures of the Library.
	Doct: Conr: Berthold: Behrens Archiater : Brittann Ac Hildesiae In Patria... / Joh: Lud: Brandes sculp. Credit: National Library of Medicine.		Nobilis Et Clarissimus Joannes Baptista Besardus Civis Bisuntinus Ac LL. Doctor. / Lucas Kilian Aug. ad uivum delin. et sculp. Credit: National Library of Medicine.
	Croghan Hall, two men near maelstrom in Mammoth Cave, Kentucky] / AC. Credit: Library of Congress.		Agriculture. Women on farms. The horses, cows, and chickens cared for, Mrs. Harold Sontag of Maple Park, Illinois, starts out for the farmhouse with her blonde, pre-school youngsters. Like many another U.S. farmer's wife, Mrs. Sontag takes an extremely ac. Credit: Library of Congress.
Source: pictures compiled by the editor from various references; see picture credits.

Digital Photo Gallery: Ac

"Old AC transformer" by Carlos Villela
Commentary: "An old 220-110v A/C transformer found at my girlfriend's beach apartment."

Source: photographs selected by the editor, with permission from the photographers.

Sounds Captioned with "Ac".

Play	Caption	Play	Caption
	Electricity; voltage; volts; power; AC; DC; current; electromagneticism; electron; galvanism; heat; hot stuff; ignition; juice; light; magneticism; neutron; positron; proton; radioactivity; service; spark; tension; utilities; energy; kilowatts.		Electricity; voltage; volts; power; AC; DC; current; electromagneticism; electron; galvanism; heat; hot stuff; ignition; juice; light; magneticism; neutron; positron; proton; radioactivity; service; spark; tension; utilities; energy; kilowatts.
	Electricity; voltage; volts; power; AC; DC; current; electromagneticism; electron; galvanism; heat; hot stuff; ignition; juice; light; magneticism; neutron; positron; proton; radioactivity; service; spark; tension; utilities; energy; kilowatts.
Source: compiled by the editor from various references; see credits.

Historic Usage: Ac

Author	Date	Quotation
John Locke	1690	Alter casus est, Si rex in alicujus clientelam se contulit, ac regnum quod liberum a majoribus & populo traditum accepit, alienae ditioni mancipavit. (Second Treatise of Government)
Source: compiled by the editor from various references.

Non-Fiction Usage: Ac

Subject	Topic	Quote
Health		Goldenberg RL, Andrews WW, Yuan AC, MacKay HT, St. Louis ME. 1997. Sexually transmitted diseases and adverse outcomes of pregnancy. (references)
		However, AC has not been compared to cyclophosphamide/doxorubicin/5-fluorouracil (CAF) or cyclophosphamide/epirubicin/5-fluorouracil (CEF). (references)
		Steere AC, Sikand VK, Meurice F, et al. Vaccination against Lyme disease with recombinant Borrelia burgdorferi outer-surface lipoprotein A with adjuvant. (references)
Business		In June 1996, AC Nielson introduced the first TV-rating measurement process. (references)
		Competitive issues affecting the AC motor market include greater emphasis on application expertise and continued price pressures. (references)
		According to a recent study by the international marketing consulting company Frost & Sullivan, the commercialization of technology in more efficient and reliable integral horsepower motors is transforming the AC market, and demand for such motors is increasing. (references)
Economic History	Argentina	AC 50 cycle, 220 volts, one phase. (references)
	India	In the AC industry, both the organized and the unorganized sector are present, but the latter does not exist in the Indian refrigeration industry. (references)
	India	The domestic window AC segment is growing the fastest but this segment has become increasingly competitive with a large number of players, resulting in low profit margins. (references)
Trade	Vietnam	The electric current is AC 50 cycles, 220/380. The electric utility system of Vietnam is being standardized at 3 phase, 220/330 volts, 4 wires. (references)
Travel	France	Electric current in France is 220 volts AC, 50 cycles. (references)
	Poland	Electrical appliances use 220 volts AC, 50Hz, with continental European (two-prong) outlets. (references)
Worker Rights	Mauritania	The CLTM is associated with the Action for Change (AC) opposition party. (references)
Source: compiled by the editor from ICON Group International, Inc.; see credits.

Usage Frequency: Ac

"Ac" is generally used as a noun (singular) -- approximately 90.63% of the time. "Ac" is used about 789 times out of a sample of 100 million words spoken or written in English. Its rank is based on over 700,000 words used in the English language. Some parts-of-speech are not covered due to the samples used by the British National Corpus. (note: percents less than one-hundredth of one percent have been omitted)

Parts of Speech	Percent	Usage per 100 Million Words	Rank in English
Noun (singular)	90.63%	715	9,396
Unclassified Items	8.99%	71	39,674
Noun (proper)	0.38%	3	202,518
Total	100.00%	789	N/A

Source: compiled by the editor from several corpora; see credits.

Expressions: Ac

Expressions using "Ac": AC bus ♦ AC code ♦ ac current ♦ AC generator ♦ AC I/O panel ♦ ac Input/Output(I/O)access panel ♦ AC linearity ♦ AC network ♦ AC signaling ♦ AC signalling ♦ ac test ♦ alternating current ac ♦ anode AC resistance ♦ dictum ac factum ♦ electrode AC resistance ♦ gratior ac pulchro veniens in corpore virtus ♦ Pepcid AC ♦ Pepcid AC [OTC]. Additional references.
Hyphenated Usage
	Beginning with "Ac": AC-3, AC-3, Ac-asa, ac-dc, ac-in, ac-joint, Ac-pc, Ac-point, ac-type.
	Containing "Ac": dc-ac converter.
Source: compiled by the editor from various references; see credits.

Frequency of Internet Keywords: Ac

The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com.

Expression	Frequency per Day	Expression	Frequency per Day
ac dc	7,814	ac filter	126
ac dc.com	2,286	ac delco part	125
ac milan	1,006	ac dc power supply	122
ac	829	ac dc guitar tab	120
ac moore	744	portable ac	119
ac dc lyrics	586	ac dc and mp3	112
ac transit	556	ac compressor	106
ac delco	458	dc ac power inverter	106
ac adapter	396	ac dc picture	104
ac central	358	97 ac driver	94
ac cobra	338	ac dc adapter	94
ac dc converter	293	ac dc discography	93
ac welders	274	laptop ac adapter	81
ac dc tab	268	ac 130 gunship	81
ac schnitzer	237	tv ac dc	80
ac movie pass	217	via ac 97	75
ac 97	213	ac power adapter	75
ac motor	195	ac dc band	74
ac dc inverter	190	ac to dc power converter	68
computer room ac	169	music of ac dc	63
Source: compiled by the editor from various references; see credits.

Modern Translation: Ac

Language		Translations for "Ac"; alternative meanings/domain in parentheses.
Bulgarian		променлив ток (alternating current). (various references)

Chinese		交流. (various references)

Danish		anoderesistans for vekselstrøm (anode a.c.resistance, anode AC resistance, anode alternating current resistance), alternator (AC generator, alternating current generator, alternator), allura red AC (allura red AC, CI food red 17), AC-generator (AC generator, alternating current generator, alternator), vekselstroems generator (AC generator, alternating current generator, alternator), vekselstrømssignalering (AC signaling, AC signalling, alternating-current signaling, alternating-current signalling), normaliseringstemperaturen afhaenger af Ac3-temperaturen (the normalising temperature depends on the Ac 3 temperature), elektroderesistans for vekselstrøm (electrode a.c.resistance, electrode AC resistance, electrode alternating current resistance), elektrode vekselsspændingsresistans (electrode a.c.resistance, electrode AC resistance, electrode alternating current resistance), E129 (allura red AC, CI food red 17), Den staaende arbejdsgruppe vedroerende aerter,boenner og hesteboenner under Den raadgivende Foderstofkomite (Standing Working Group on Peas and Field Beans of the AC on Feedingstuffs). (various references)

Dutch		allurarod AC (allura red AC, CI food red 17), wisselstroomweerstand van een elektrode (electrode a.c.resistance, electrode AC resistance, electrode alternating current resistance), wisselstroomsignalering (AC signaling, AC signalling, alternating-current signaling, alternating-current signalling), wisselstroomgenerator (AC generator, alternating current generator, alternator), wisselstroomdynamo (AC generator, alternating current generator, alternator), signalering met wisselstroomcodes (AC signaling, AC signalling, alternating-current signaling, alternating-current signalling), Permanente werkgroep Erwten,tuin-en veldbonen van het RC voor veevoeder (Standing Working Group on Peas and Field Beans of the AC on Feedingstuffs), ompoler (AC generator, alternating current generator, alternator), inwendige weerstand (anode a.c.resistance, anode AC resistance, anode alternating current resistance), E129 (allura red AC, CI food red 17), draaistroomgenerator (AC generator, alternating current generator, alternator), de temperatuur van het zachtgloeien varieert en is afhankelijk van het niveau van de Ac 3-temperatuur (the normalising temperature depends on the Ac 3 temperature). (various references)

Finnish		allurapunainen AC (allura red AC, CI food red 17, E129), AC-merkinanto (AC signaling, AC signalling, alternating-current signaling, alternating-current signalling), vaihtovirtamerkinanto (AC signaling, AC signalling, alternating-current signaling, alternating-current signalling), vaihtojännitegeneraattori (AC generator, alternating current generator, alternator), E 129 (allura red AC, CI food red 17, E129). (various references)

French		courant alternatif. (various references)

German		Wechselstrom (alternating current, alternating current (AC)). (various references)

Greek		Mόνιμη Oμάδα Eργασίας για τα Πίσσα,Φούλια και Kουκιά της Σ.E.Zωοτροφών (Standing Working Group on Peas and Field Beans of the AC on Feedingstuffs), σηματοδοσία εναλλασσόμενου ρεύματος (AC signaling, AC signalling, alternating-current signaling, alternating-current signalling), γεννήτρια εναλασσομένου ρεύματος (AC generator, alternating current generator, alternator), χονδροειδές πλέγμα σεμεντίτη μπορεί να καταστραφεί ολοκληρωτικά από επαναλαμβανόμενη θέρμανση πάνω από την θερμοκρασία Acl (a coarse network of cementite also can be completely destroyed by repeated heating above Ac), η θερμοκρασία εξομάλυνσης εξαρτάται απο την θερμοκρασία Ac3 (the normalising temperature depends on the Ac 3 temperature), εναλλάκτης (AC generator, alternating current generator, alternator), εναλλακτήρας (AC generator, alternating current generator, alternator), E129,allura red AC,CI Κόκκινο τροφίμων 17 (allura red AC, CI food red 17, E129). (various references)

Hungarian		középmagas gomolyos felhõ (altocumulus). (various references)

Indonesian		arus bolak-balik (ac (alternating current)), rekening koran (ac (account current)). (various references)

Italian		corrente alternata (alternating current). (various references)

Japanese Kanji		交流発電機 (an AC generator). (various references)

Japanese Katakana		こうりゅうはつでんき (an AC generator). (various references)

Pig Latin		acay.(various references)

Portuguese		alternador (AC generator, alternating current generator, alternator), vermelho allura AC (allura red AC, CI food red 17, E129), vermelho alimentar CI 17 (allura red AC, CI food red 17, E129), resistência de eléctrodo em corrente alternada (electrode a.c.resistance, electrode AC resistance, electrode alternating current resistance), resistência de ânodo em corrente alternada (anode a.c.resistance, anode AC resistance, anode alternating current resistance), Grupo de Trabalho Permanente "Ervilhas,Favas e Favarolas" do CC dos Alimentos para Animais (Standing Working Group on Peas and Field Beans of the AC on Feedingstuffs), gerador de corrente alterna (AC generator, alternating current generator, alternator), E129 (allura red AC, CI food red 17, E129), corrente alternada (ac current, alternating current ac). (various references)

Russian		пер.ток. (various references)

Spanish		corriente alterna (a.c., alternate current, alternating current). (various references)

Swedish		växelström (alternating current). (various references)
Source: compiled by the editor from various translation references.

Bible Trace: Ac

Language	Date	Source	Acts Chapter 2, Verse 16
Greek (transliterated)	250 BC	Septuagint	Alla touto estin to eirhmenon dia tou profhtou iwhl
Latin	405	Vulgate	Sed hoc est quod dictum est per prophetam Iohel
Old English	990	West Saxon	Ac hit is swa se witega Iohel ma.þelode:
Middle English	1395	Wyclif	But this it is, that was seid bi the prophete Johel,
Renaissance English	1526	Tyndale	But this is that which was spoken by ye Prophete Iohel:
Jacobean English	1611	King James	But this is that which was spoken by the prophet Joel;
Victorian English	1833	Webster	But this is that which was spoken by the prophet Joel,
Basic English	1964	Ogden	But this is the thing which was said by the prophet Joel;
Source: compiled by the editor from various references; see credits.

Matched Bible Translations: Ac

Language	Acts Chapter 2, Verse 16
Albanian	Por kjo është ajo që ishte thënë nëpërmjet profetit Joel:
Cebuano	apan kini mao ang giingon sa profeta nga si Joel:
Chinese	這正是先知約珥所說的．
Croatian	nego to je ono što je reèeno po proroku Joelu:
Danish	men dette er, hvad der et sagt ved Profeten Joel:
Dutch	Maar dit is het, wat gesproken is door den profeet Joel:
Finnish	Vaan tämä on se, mikä on sanottu profeetta Jooelin kautta:
French	Mais c`est ici ce qui a été dit par le prophète Joël:
German	sondern das ist's, was durch den Propheten Joel zuvor gesagt ist:
Haitian Creole	Men, sa pwofèt Joèl te fè konnen gen pou rive a, se sa k'ap pase koulye a:
Indonesian-Bahasa Sehari-hari	Tetapi ini sudah diberitahukan oleh Allah melalui Nabi Yoel:
Indonesian-Terjemahan Lama	melainkan inilah hal yang disabdakan oleh Nabi Yoel:
Italian	Accade invece quello che predisse il profeta Gioele:
Latvian	Bet tas ir, ko pravietis Joçls sacîja:
Maori	Engari ko te mea tenei i korerotia e Hoera poropiti;
Norwegian	men dette er det som er sagt ved profeten Joel:
Portuguese	Mas isto é o que foi dito pelo profeta Joel:
Rumanian	Ci aceasta este ce a fost spus prin proorocul Ioel:
Shuar	Antsu Yúsnan etserin, ni naari Juér, yaunchu aarmia nu, Yamái Túrunayi, Tímiayi.
Spanish	Más bien, esto es lo que fue dicho por medio del profeta Joel:
Swahili	Ukweli ni kwamba jambo hili ni lile alilosema nabii Yoeli:
Swedish	Nej, här uppfylles det som är sagt genom profeten Joel:
Ukrainian	а це те, що пророк Йоіл передрік:
Uma	To jadi' tohe'i-e, kadupa' -na to nalowa ami' -mi Pue' Ala owi hante wiwi nabi Yoel, hewa toi moni-na:
Source: compiled by the editor from various references; see credits.

Derivations: Ac

Derivations
	Words beginning with "Ac": acacia, acacias, academe, academes, academia, academias, academic, academical, academically, academician, academicians, academicism, academicisms, academics, academies, academism, academisms, academy, acajou, acajous, acaleph, acalephae, acalephe, acalephes, acalephs, acanthi, acanthocephalan, acanthocephalans, acanthus, acanthuses, acapnia, acapnias, acari, acariases, acariasis, acaricidal, acaricide, acaricides, acarid, acaridan, acaridans, acarids, acarine, acarines, acaroid, acarpous, acarus, acatalectic, acatalectics, acaudal, acaudate. (additional references)
	Words ending with "Ac": algolagniac, almanac, ammoniac, amnesiac, amtrac, anaphrodisiac, antiaphrodisiac, aphasiac, aphrodisiac, armagnac, bibliomaniac, bivouac, brainiac, bulimiac, calpac, cardiac, celeriac, celiac, champac, coeliac, cognac, coprophiliac, corsac, demoniac, dipsomaniac, egomaniac, elegiac, galyac, guaiac, heliac, hemophiliac, hypochondriac, ileac, iliac, insomniac, intracardiac, ipecac, kleptomaniac, lac, lilac, linac, mac, maniac, medevac, megalomaniac, melancholiac, monomaniac, muntjac, mythomaniac, necrophiliac, neophiliac. (additional references)
	Words containing "Ac": abaca, abacas, abaci, aback, abacterial, abacus, abacuses, abbacies, abbacy, abortifacient, abortifacients, abracadabra, abracadabras, abrachia, abrachias, abreact, abreacted, abreacting, abreaction, abreactions, abreacts, abroach, abstract, abstractable, abstracted, abstractedly, abstractedness, abstractednesses, abstracter, abstracters, abstractest, abstracting, abstraction, abstractional, abstractionism, abstractionisms, abstractionist, abstractionists, abstractions, abstractive, abstractly, abstractness, abstractnesses, abstractor, abstractors, abstracts, adequacies, adequacy, adjacencies, adjacency, adjacent. (additional references)
Source: compiled by the editor, based on several corpora (additional references).

Anagrams: Ac

Scrabble® Enable2K-Verified Anagrams
	Words containing the letters "a-c"
	+1 letter: ace, act, arc, cab, cad, cam, can, cap, car, cat, caw, cay, lac, mac, oca, pac, sac, vac.
	+2 letters: aced, aces, ache, achy, acid, acme, acne, acre, acta, acts, acyl, alec, arch, arco, arcs, asci, bach, back, cabs, caca, cade, cadi, cads, cafe, caff, cage, cagy, caid, cain, cake, caky, calf, calk, call, calm, calo, calx, came, camp, cams, cane, cans, cant, cape, caph, capo, caps, carb, card, care, cark, carl, carn, carp, carr, cars, cart, casa, case, cash, cask, cast, cate, cats, caul, cave, cavy, caws, cays, ceca, chad, cham, chao, chap, char, chat, chaw, chay, chia, ciao, clad, clag, clam, clan, clap, claw, clay, coal, coat, coax, coca, coda, cola, coma, coxa, crab, crag, cram, crap, craw, cyan, cyma, czar, dace, each, face, fact, hack, jack, lace, lack, lacs, lacy, laic, loca, mace, mach, mack, macs, marc, mica, narc, ocas, orca, paca, pace, pack, pacs, pact, pica, race, rack, racy, sack, sacs, scab, scad, scag, scam, scan, scar, scat, tace, tach, tack, taco, tact, talc, vacs, wack, yack, yuca.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.

INDEX

1. Definition
2. Synonyms
3. Crosswords
4. Usage: Modern

5. Usage: Commercial
6. Images: Slideshow
7. Images: Photo Album
8. Images: Digital Art

9. Sounds
10. Quotations: Historic
11. Quotations: Non-fiction
12. Usage Frequency

13. Expressions
14. Expressions: Internet
15. Translations: Modern
16. Bible Trace

17. Abbreviations
18. Acronyms
19. Derivations
20. Anagrams

21. Bibliography

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