Ac (Noun)

Meaning ¹

A radioactive element of the actinide series; found in uranium ores.

Classification

Nouns denoting substances.

Synonyms

• Atomic Number 89
• Actinium

Hypernyms

• Chemical Element

Meaning ²

An electric current that reverses direction sinusoidally; "In the US most household current is AC at 60 cycles per second".

Classification

Nouns denoting natural phenomena.

Synonyms

• Alternating Electric Current
• Alternating Current

Hypernyms

• Electricity
• Power