servomotor Hear it!

servomotor definition

servo·mo·tor (sʉr′vō mōt′ər)

noun

a device, as an electric motor, hydraulic piston, etc., that is controlled by an amplified signal from a command device of low power, as in a servomechanism

Etymology: < Fr servo-moteur < L servus, slave (see serf) + Fr moteur, motor

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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