neuropeptide

noun

neu·​ro·​pep·​tide ˌnu̇r-ə-ˈpep-ˌtīd How to pronounce neuropeptide (audio)
ˌnyu̇r-
: an endogenous peptide that influences neural activity or functioning

Examples of neuropeptide in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
For instance, one study evaluated a facial serum containing neuropeptides, proteins, amino acids, and marine extract. — Kathleen Ferraro, Verywell Health, 12 Mar. 2025 In terms of a mechanism, the rejection seems to decrease levels of a neuropeptide in the brain, which increases after mating, leading Heberlein et al. — ArsTechnica, 2 Apr. 2025 The blend of neuropeptides, antioxidants, and gentle exfoliant gluconolactone is an easy, needle-free way to leave skin looking smoother and more radiant. — Emily Orofino, Vogue, 23 Oct. 2025 Having positive thoughts releases something called neuropeptides that help fights stress and potentially more serious illnesses. — Helen Dennis, Daily News, 9 Feb. 2025 See All Example Sentences for neuropeptide

Word History

First Known Use

1973, in the meaning defined above

Time Traveler
The first known use of neuropeptide was in 1973

Rhymes for neuropeptide

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Browse Nearby Words

neuropathy
neuropeptide
neuropharmacology
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Cite this Entry

“Neuropeptide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/neuropeptide. Accessed 8 Jul. 2026.

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Medical Definition

neuropeptide

noun
neu·​ro·​pep·​tide ˌn(y)u̇r-ə-ˈpep-ˌtīd How to pronounce neuropeptide (audio)
: an endogenous peptide (as an endorphin or an enkephalin) that influences neural activity or functioning

More from Merriam-Webster on neuropeptide

Britannica.com: Encyclopedia article about neuropeptide

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