English dictionary

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English noun: Ac

1. Ac (substance) a radioactive element of the actinide series; found in uranium ores

Synonymsactinium, atomic number 89

Broader (hypernym)chemical element, element

Substance meronymuranium ore

2. AC (phenomenon) an electric current that reverses direction sinusoidally

SamplesIn the US most household current is AC at 60 cycles per second.

Synonymsalternating current, alternating electric current

Broader (hypernym)electrical energy, electricity

Antonymsdirect current, direct electric current, dc

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