gadfly Hear it!

gadfly definition

gad·fly (gad′flī′)

noun pl. gadflies -·flies′

  1. any of several large flies, as the horsefly, that bite livestock
  2. a person who annoys others, esp. by rousing them from complacency

Etymology: gad + fly

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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