alternators is a form of:

Alternator



noun
1.
(បច្ចេកវិទ្យា​និង​វិទ្យាសាស្ត្រ) (an electric generator for producing alternating current) ម៉ាស៊ីនបង្កើតចរន្ដឆ្លាស់
ENGLISH MEANING
noun
1.
An electric generator or dynamo for producing alternating currents.