retrorocket Hear it!

retrorocket definition

☆ retro·rock·et or retro-rocket ret′ro-rock′et (re′trō räk′it)

noun

a small rocket on a larger rocket or spacecraft, that produces thrust in a direction opposite to the direction of flight in order to reduce speed, as for maneuvering

Etymology: retro- + rocket

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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