agonist Hear it!

agonist definition

ago·nist (ag′ə nist′)

noun

  1. one who takes part in a struggle, as a main character in a drama
  2. a muscle whose action on a joint or orifice is opposed by the action of another muscle, the antagonist

Etymology: back-form. < antagonist

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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