Wiktionary
commutators
n. (plural of commutator English)
Usage examples of "commutators".
Through an electrical arrangement involving rotating commutators, the proper sequence of pulses is sent out when a character's key is struck on the keyboard.
A line of fifty trucks from the Zenith Steel and Machinery Company was attacked by strikers-rushing out from the sidewalk, pulling drivers from the seats, smashing carburetors and commutators, while telephone girls cheered from the walk, and small boys heaved bricks.