allergen Hear it!

allergen definition

☆ al·ler·gen (al′ər jən, -jen′)

noun

a substance inducing an allergic state or reaction

Etymology: Ger < allergie, allergy + -gen, -gen

Related Forms:

  • allergenic al′·ler·gen′ic (-jen′ik) adjective

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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