a.c.

adjective

acromioclavicular

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Meanings

a.c.1

nouna.c. (uncountable)
  1. abbreviationinitialismuncountablebusinessInitialism of alternating current.

    Lamp a.c. generator Fig. 24.1

    2000, Jim Breithaupt, New Understanding Physics for Advanced Level
    1 more example

    Thus the frequency of the given a.c. supply will be equal to the frequency of the vibrating string.

    1999, S.K. Dash, Lab Manual Physics
phrase
  1. abbreviationinitialismmedicineInitialism of ante cibum (“before meals”).

A.C.2

adjective

alternative AC

  1. medicineacromioclavicular
  2. medicineaxiocervical
  3. medicineatriocarotid
  4. medicineauriculocarotid
adverb

alternative AC

  1. ante Christum, before Christ
nounA.C. (countable and uncountable, plural A.C.s)

plural A.C.s · alternative AC

  1. countableuncountablemedicineadrenal cortex
  2. countableuncountableair conduction
  3. countableuncountablebusinessalternating current
  4. countableuncountablemedicineanodal closure
  5. countableuncountableanno Christi
  6. countableuncountableappellate court
  7. countableuncountablearmy corps
  8. countableuncountableathletic club
phrase

alternative AC

  1. IndiaabbreviationhistoricalinitialismInitialism of after compliments: marking the omitted formalities of native compliments, in official versions of native letters.

Synonyms & antonyms

Also see
adyear of our lord
Cite this entry
APA

a.c.. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/a.c.

MLA

“a.c..” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/a.c.. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “a.c.,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/a.c..

Source: a.c. on Wiktionary, CC BY-SA 4.0.