Main Entry:

¹mo·tor

Pronunciation:

\ˈmō-tər\

Function:

noun

Etymology:

Latin, from movēre to move

Date:

1586

1: one that imparts motion ; specifically : prime mover2: any of various power units that develop energy or impart motion: as a: a small compact engine b: internal combustion engine ; especially : a gasoline engine c: a rotating machine that transforms electrical energy into mechanical energy 3: motor vehicle ; especially : automobile

— mo·tor·dom \-dəm\ noun

— mo·tor·less \-ləs\ adjective