neurotransmitter: Meaning and Definition of


Pronunciation: (noor"ō-trans'mit-ur, -tranz'-, nyoor"-), [key]
— n.
  1. any of several chemical substances, as epinephrine or acetylcholine, that transmit nerve impulses across a synapse to a postsynaptic element, as another nerve, muscle, or gland.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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