AC


AC
[[t]e͟ɪ si͟ː[/t]]
N-UNCOUNT: oft N n
AC is used to refer to an electric current that continually changes direction as it flows. AC is an abbreviation for `alternating currente͟ɪ.

In Europe, AC is usually generated at 50 Hz.

...a portable AC generator.


English dictionary. 2008.