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

Amino acids have a hand in many bodily processes, such as building and preserving muscle, making hormones and neurotransmitters, boosting the immune system, even maintaining healthy skin, hair and nails. —Andrea Kane, CNN Money, 15 Apr. 2025

Deliberately introducing challenges that align with our values or contribute to a greater good can help release hormones and neurotransmitters that counteract cortisol and reduce its harmful effects. —Calin Van Paris, Outside Online, 15 Apr. 2025

This essential mineral helps regulate neurotransmitters involved in relaxation and sleep. —Elizabeth Fogarty, Better Homes & Gardens, 8 Apr. 2025

Estrogen affects neurotransmitters in the brain that impact memory, mood, and sleep, so fluctuating levels can result in cognitive changes. —Erica Sweeney, SELF, 21 Mar. 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