Definitions for ac
Overview of noun ac
The noun ac has 2 senses? (no senses from tagged texts)
1. actinium, Ac, atomic number 89
(a radioactive element of the actinide series; found in uranium ores)
2. alternating current, AC, alternating electric current
(an electric current that reverses direction sinusoidally; "In the US most household current is AC at 60 cycles per second")
