a/cabbr. account currentAmerican Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.a/c abbreviation for 1. (Accounting & Book-keeping) account 2. (Accounting & Book-keeping) account current A/C abbreviation for (Military) (in Canada)Air Commodore Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014AC or A.C. 1. air conditioning. 2. Also, ac, a.c., alternating current. 3. before Christ. [
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a.c.abbr. Latin ante cibum (before meals)American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.a.c. abbreviation for (Pharmacology) (in prescriptions) ante cibum [Latin: before meals]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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al·ter·nat·ing current (ôl?t?r-n??t?ng, ?l?-)n. Abbr. AC An electric current that reverses direction in a circuit at regular intervals.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.alternating current n (Electrical Engineering) a continuous electric current that periodically reverses direction, usually sinusoidally. Abbreviation: AC Compare: direct current Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014al?ternating cur?rent n. an electric current that reverses direction at regular intervals, having a magnitude that varies continuously in a sinusoidal manner. Abbr.: AC Compare direct current. [1830?40] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.al·ter·nat·ing current (ôl?t?r-n??t?ng) An electric current that reverses its direction of flow at regular intervals. Because the voltage of alternating current can be easily controlled with transformers, this is the type of electricity generated by power stations. The transformers raise the voltage to make it easier to transmit over long distances, then lower the voltage for safer use in homes and buildings. Compare direct current. See Notes at current, Tesla.The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.alternating currentA rapidly reversing electric current.Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
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ACabbr.1. adult contemporary (radio format)2. or a/c air conditioning3. air-cool4. alternating current5. area codeAc 1The symbol for actinium.Ac 2abbr. Bible Acts of the ApostlesAmerican Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.ac the internet domain name for (Computer Science) Ascension Island Ac the chemical symbol for (Chemistry) actinium AC abbreviation for 1. (Electrical Engineering) alternating current. Compare DC 2. ante Christum 3. (Military) Air Corps 4. (Athletics (Track & Field)) athletic club 5. Companion of the Order of Australia 6. (Brewing) appellation d’origine contrôlée: the highest French wine classification; indicates that the wine meets strict requirements concerning area of production, strength, etc. See VDQS, vin de pays, vin de table 7. (Government, Politics & Diplomacy) Aelodau’r Cynulliad: Member of the Assembly (that is, the National Assembly of Wales) [(for sense 3) Latin: before Christ]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014AC or A.C. 1. air conditioning. 2. Also, ac, a.c., alternating current. 3. before Christ. [