a radioactive element of the actinide series; found in uranium ores
an electric current that reverses direction sinusoidally
"In the US most household current is AC at 60 cycles per second"
Initialism of absolute ceiling.
account; money of account
The Acura Legend automobile.
Initialism of air-conditioning.
Initialism of acromioclavicular.
ante cibum, before meals
Initialism of anno Christi (in the year of Christ).
Initialism of all clear (as in button on electronic calculator).
Aceh, an autonomous province of Indonesia.