neurotransmitter Hear it!

neurotransmitter definition

neuro·trans·mit·ter (no̵or′ō trans′mit′ər, nyo̵or′-; -tranz′-)

noun

a biochemical substance, as acetylcholine or norepinephrine, that transmits or inhibits nerve impulses at a synapse

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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