contrail Hear it!

contrail definition

☆ con·trail (kän′trāl′)

noun

a white trail of condensed water vapor that sometimes forms in the wake of an aircraft; vapor trail

Etymology: con(densation) + trail

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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