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

Your mood is influenced by the balance of neurotransmitters (chemicals that carry messages between nerves) in your body. —Heidi Moawad, Verywell Health, 31 July 2025

And that’s not all: Omega-3s also lend a hand to a bevy of other brain activities, among them the ability of several mood-affecting neurotransmitters to successfully do their jobs. —Erica Sloan, SELF, 25 July 2025

This may be due to its ability to restore the activity of neurotransmitters, such as serotonin and dopamine, which are chemical messengers in the brain.11 Animal studies show curcumin can reduce symptoms of depression, and some clinical trials support these findings. —Lauren O'Connor, Health, 2 July 2025

Dopamine is a neurotransmitter in the brain associated with feelings of pleasure. —Khloe Quill, FOXNews.com, 2 Aug. 2025

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