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+
acetylcholine in American English
(ˌæsɪˌtɪlˈkoʊlin)
noun
the acetic acid ester of choline, (CH3)3N(OH)CH2CH2OCOCH3, found in many body tissues, esp. at neuromuscular junctions, acting as a nerve impulse transmitter: its chloride or bromide is used in medicine for various disorders
Word origin
acetyl + choline
Examples of 'acetylcholine' in a sentence
acetylcholine
A man takes three sips of kalla, and he touches off the release of neurotransmitters, acetylcholine and tryptamine and serotonin.