Ac

n.	1.	the chemical symbol for actinum, a radioactive element.
	1.	an electric current that reverses direction sinusoidally. Alternative to direct curent, DC.

Noun	1.	Ac - a radioactive element of the actinide series; found in uranium ores Synonyms: actinium, atomic number 89
	2.	AC - an electric current that reverses direction sinusoidally; "In the US most household current is AC at 60 cycles per second" Synonyms: alternating current

Automatic ComputerDC, absorption current, active current, alternating current, conduction current, convection current, cycle, delta current, dielectric displacement current, direct current, displacement current, eddy current, electric current, electric stream, emission current, exciting current, free alternating current, galvanic current, high-frequency current, idle current, induced current, induction current, ionization current, juice, low-frequency current, magnetizing current, multiphase current, pulsating direct current, reactive current, rotary current, single-phase alternating current, stray current, thermionic current, thermoelectric current, three-phase alternating current, voltaic current, watt current