English

Initialism

a.c.

1. (electricity) 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.

2. (medicine) ante cibum, before meals