underwing Hear it!

underwing definition

under·wing (un′dər wiŋ′)

noun

  1. either of the pair of hind wings of an insect
  2. any of various noctuid moths (esp. genus Catocala) having brightly colored hind wings that are hidden under drab forewings except during flight

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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