Word Study
ac
WORDNET DICTIONARY
Noun ac has 2 senses
- ac(n = noun.substance) actinium, atomic number 89 - a radioactive element of the actinide series; found in uranium ores; Array is a kind of chemical element, element
- ac(n = noun.phenomenon) alternating current, alternating electric current - an electric current that reverses direction sinusoidally; "In the US most household current is AC at 60 cycles per second" is a kind of electrical energy, electricity
CIDE DICTIONARY
ac, n.
the chemical symbol for actinum , a radioactive element. [WordNet 1.5]
ac, n. [Acronym from alternating current.].
an electric current that reverses direction sinusoidally. Alternative to direct curent , DC . [WordNet 1.5]
OXFORD DICTIONARY
ac, abbr.
1 (also ac) alternating current.
2 Brit. aircraftman.
3 before Christ.
4 Companion of the Order of Australia.
1 (also ac) alternating current.
2 Brit. aircraftman.
3 before Christ.
4 Companion of the Order of Australia.
Etymology
sense 3 f. L ante Christum
ac, symb. Chem. the element actinium.
THESAURUS
ac
DC, 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
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