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Meaning of pulsejet engine

pulse'jet en'gine

Pronunciation: (puls'jet"), [key]
— Aeron. Aeron.
  1. a jet engine equipped with valves that continuously open to admit air, then close during combustion, giving a pulsating thrust: used to power the V-1, a German buzz bomb, in World War II.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.