a.c.

a.c. (uncountable)

1. (electricity) Initialism of alternating current.
   • 2000, Jim Breithaupt, New Understanding Physics for Advanced Level:

     Lamp a.c. generator Fig. 24.1

   • 1999, S.K. Dash, Lab Manual Physics:

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

a.c.

1. (medicine) Initialism of ante cibum (“before meals”).

• ca, CA, C.A., ca., &ca., &ca

a.c. m (invariable)

1. (business) Abbreviation of anno corrente.

a.c.

1. (typography, music) Abbreviation of a capo.

• a.c. in Treccani.it – Vocabolario Treccani on line, Istituto dell'Enciclopedia Italiana

• ca, ca'