propeller Hear it!

propeller definition

pro·pel·ler (prə pel′ər, prō-)

noun

a person or thing that propels; specif., a device (in full screw propeller) on a ship or aircraft, consisting typically of two or more blades twisted to describe a helical path as they rotate with the hub in which they are mounted, and serving to propel the craft by the backward thrust of air or water

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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