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histamine definition

his·ta·mine (his′tə mēn′, -min′)

noun

an amine, CHN, produced by the decarboxylation of histidine and found in all organic matter: it is released by the tissues in allergic reactions, lowers the blood pressure by dilating blood vessels, stimulates gastric secretion, etc.

Etymology: hist(idine)- + amine

Related Forms:

  • histaminic his′·ta·min′ic (-min′ik) adjective

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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