acetylcholine

noun

ace·​tyl·​cho·​line ə-ˌse-tᵊl-ˈkō-ˌlēn 

-ˌsē-;

ˈa-sə-ˌtēl-

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

Examples of acetylcholine in a Sentence

Recent Examples on the Web

Eggs Eggs contain choline, which is needed to produce acetylcholine, a neurotransmitter involved in memory, mood, and other brain functions.14 Tryptophan in eggs may improve perceptual motor skills, speed, and attention. —Sohaib Imtiaz, Verywell Health, 22 Jan. 2025

Without acetylcholine, the muscles in the area become temporarily paralyzed.1 Treating Incontinence With Botox To treat incontinence with Botox, a healthcare professional injects the medication into the detrusor muscle. —Rosanna Sutherby, Pharmd, Verywell Health, 27 Nov. 2024

Low acetylcholine: Generally, low acetylcholine is noted with Alzheimer’s disease and can be associated with a decline in memory. —Smita Patel, Verywell Health, 25 Sep. 2024

Anticholinergic drugs block the neurotransmitter acetylcholine (ACh) to treat muscle spasms and other health conditions. —Mary Choy, Health, 9 Oct. 2024

Word History

Etymology

borrowed from German Acetylcholin, from Acetyl acetyl + Cholin choline

First Known Use

1906, in the meaning defined above

Kids Definition

acetylcholine

noun

ace·​tyl·​cho·​line ə-ˌset-ᵊl-ˈkō-ˌlēn 

-ˌsēt-;

ˈas-ə-ˌtēl-

: a compound released at autonomic nerve endings that functions in carrying nerve impulses

Medical Definition

acetylcholine

noun

ace·​tyl·​cho·​line ə-ˌset-ᵊl-ˈkō-ˌlēn  -ˌsēt-; ˌas-ə-ˌtēl- 

: 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 

adjective