- an electrical machine that generates an alternating current
WordReference Random House Learner's Dictionary of American English © 2026
al•ter•na•tor /ˈɔltɚˌneɪtɚ, ˈæl-/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2026- Electricitya generator of alternating current, used in motor vehicles, etc.
al•ter•na•tor
(ôl′tər nā′tər, al′-),USA pronunciation n. [Elect.]
- Electricitya generator of alternating current.
- alternate + -or2 1890–95
Collins Concise English Dictionary © HarperCollins Publishers::
alternator /ˈɔːltəˌneɪtə/ n
'alternator' also found in these entries (note: many are not synonyms or translations):