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Definition of acetylcholine
: a neurotransmitter [C7H16NO2]+ released at autonomic synapses and neuromuscular junctions and formed enzymatically in the tissues from choline
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Recent Examples of acetylcholine from the Web
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All this emotion tells your hypothalamus to produce the chemical messenger acetylcholine.
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In these cases, a very likely reason for their loss of smell is a decrease in the function of a major neurotransmitter called acetylcholine.
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An anticholinergic blocks a neurotransmitter called acetylcholine.
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These nerve poisons can inhibit an enzyme called cholinesterase, which breaks down a neurotransmitter called acetylcholine.
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In the brain, acetylcholine is involved in learning and memory.
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These drugs either slow the breakdown of the neurotransmitter acetylcholine or block the overproduction of glutamate in the brain, but none have been shown to work very well for very long.
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All of them impair the function of neuromuscular nicotinic acetylcholine receptors.
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By this means, a precise balance is struck, and the body never builds up a dangerous amount of acetylcholine.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'acetylcholine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of acetylcholine
International Scientific Vocabulary
Medical Dictionary
Medical Definition of acetylcholine
: a neurotransmitter [C7H16NO2]+ released at autonomic synapses and neuromuscular junctions, active in the transmission of nerve impulses, and formed enzymatically in the tissues from choline
Learn More about acetylcholine
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Nglish: Translation of acetylcholine for Spanish speakers Britannica.com: Encyclopedia article about acetylcholine
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