Acetylcholine

//əˌsitəlˈkoʊlin// noun

noun ·Rare ·Advanced level

Definitions

Noun

1
A neurotransmitter in humans and other animals. It is an ester of acetic acid and choline with chemical formula CH₃COOCH₂CH₂N⁺(CH₃)₃. countable, uncountable
"Acetylcholine build-up in the body can be toxic."
2
a neurotransmitter that is a derivative of choline; released at the ends of nerve fibers in the somatic and parasympathetic nervous systems wordnet

Example

"Acetylcholine build-up in the body can be toxic."

Related phrases

acetylcholine chloride acetylcholine receptor nicotinic acetylcholine receptor acetic acid chemical formula

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.