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liftoff definition

☆ lift·off (-ôf′)

noun

  1. the initial vertical takeoff of a rocket, helicopter, etc.
  2. the moment at which this occurs
Also lift-off lift′·-off′

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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