Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

acetylcholine

play
noun ace·tyl·cho·line \ə-ˌse-təl-ˈkō-ˌlēn, -ˌsē-; ˈa-sə-ˌtēl-\

Definition of acetylcholine

  1. :  a neurotransmitter [C7H16NO2]+ released at autonomic synapses and neuromuscular junctions and formed enzymatically in the tissues from choline



Origin of acetylcholine

International Scientific Vocabulary


First Known Use: 1906


Medical Dictionary

acetylcholine

play play play
noun ace·tyl·cho·line \ə-ˌset-əl-ˈkō-ˌlēn, -ˌsēt-; ˌas-ə-ˌtēl-\

Medical Definition of acetylcholine

  1. :  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

acetylcholinic \-kō-ˈlin-ik\play adjective




Seen and Heard

What made you want to look up acetylcholine? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to manage or play awkwardly

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

alt-5746713d76276

Which of these is a synonym of nonplus?

soothe perplex disapprove reduce
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ