neurotransmitter

noun

neu·​ro·​trans·​mit·​ter ˌnu̇r-ō-tran(t)s-ˈmi-tər 

-tranz-, 

ˌnyu̇r-

: a substance (such as norepinephrine or acetylcholine) that transmits nerve impulses across a synapse

Examples of neurotransmitter in a Sentence

Recent Examples on the Web

The drug works by blocking a neurotransmitter called acetylcholine, which can help calm the body’s response to allergens. — Andrew Yockey, The Conversation, 24 July 2026

Magnesium helps regulate neurotransmitters involved in sleep and supports muscle relaxation. — Lauren Jarvis-Gibson july 17, Fort Worth Star-Telegram, 17 July 2026

Mitochondria supply the raw materials for creating the neurotransmitters glutamate and acetylcholine, which manage our brain, nerves, and muscles. — Rachel Nuwer, Quanta Magazine, 17 July 2026

Magnesium, which helps regulate neurotransmitters involved in sleep, supports muscle relaxation and regulates the body’s stress response. — Lauren Jarvis-Gibson july 17, Miami Herald, 17 July 2026

Word History

First Known Use

1961, in the meaning defined above

Rhymes for neurotransmitter

• babysitter
• bitter
• critter
• fitter
• fritter
• glitter
• hitter
• jitter
• knitter
• litter
• quitter
• ritter

Kids Definition

neurotransmitter

noun

neu·​ro·​trans·​mit·​ter ˌn(y)u̇r-ō-tran(t)s-ˈmit-ər 

-tranz-

: a substance (as acetylcholine) that carries a nerve impulse from one neuron to another across a synapse

Medical Definition

neurotransmitter

noun

neu·​ro·​trans·​mit·​ter ˌn(y)u̇r-ō-tran(t)s-ˈmit-ər, -tranz- 

: a substance (as norepinephrine or acetylcholine) that transmits nerve impulses across a synapse see false neurotransmitter