lesion Hear it!

lesion definition

le·sion (lē′z̸hən)

noun

  1. an injury; hurt; damage
  2. an injury or other change in an organ or tissue of the body tending to result in impairment or loss of function

Etymology: ME < MFr < L laesio < laesus, pp. of laedere, to harm, injure

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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