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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
Walking outdoors is especially helpful as sunlight stimulates the secretion of mood-boosting neurotransmitters serotonin and dopamine, adds Farina.
—Noma Nazish, Forbes, 4 Nov. 2024
This type of narcolepsy is often confirmed by a spinal tap showing a lack of the neurotransmitter orexin.
—Sandee Lamotte, CNN, 1 Nov. 2024
Manganese is necessary for energy metabolism and immune function, while copper acts as a cofactor for enzymes involved in energy production, neurotransmitter synthesis, iron metabolism, and more.1112
4.
—Jillian Kubala, Health, 28 Oct. 2024
To send signals, neurons fill cellular sacs with neurotransmitters; then those sacs fuse with the cell membrane to release the signaling compounds on to the next neuron.
—Yasemin Saplakoglu, WIRED, 20 Oct. 2024
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Word History
First Known Use
1961, in the meaning defined above
Dictionary Entries Near neurotransmitter
Cite this Entry
“Neurotransmitter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/neurotransmitter. Accessed 22 Dec. 2024.
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
More from Merriam-Webster on neurotransmitter
Britannica.com: Encyclopedia article about neurotransmitter
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