poison ivy Hear it!

poison ivy definition

☆ poison ivy

  1. any of several woody vines or shrubs (genus Rhus, esp. R. radicans), of the cashew family, having leaves of three leaflets, greenish flowers, and ivory-colored berries: it can cause a severe rash on contact
  2. a rash or dermatitis so caused

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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