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A substance, C7H17NO3, that is derived from choline and is released at the ends of nerve fibers in the somatic and parasympathetic nervous systems, where it mediates the transmission of nerve impulses.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Biochemistry) a chemical substance secreted at the ends of many nerve fibres, esp in the autonomic nervous system, and responsible for the transmission of nervous impulses. Formula: CH3CO2(CH2)2N(CH3)3+
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a•ce•tyl•cho•line(əˌsit lˈkoʊ lin, əˌsɛt-)
a short-acting neurotransmitter, widely distributed in the body, that functions as a nervous system stimulant, a vasodilator, and a cardiac depressant.Abbr.: ACh
a•ce`tyl•cho•lin′ic (-ˈlɪn ɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
A neurotransmitter that triggers activity by muscles or secretory glands.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
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|Noun||1.||acetylcholine - a neurotransmitter that is a derivative of choline; released at the ends of nerve fibers in the somatic and parasympathetic nervous systems|
neurotransmitter - a neurochemical that transmits nerve impulses across a synapse
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