neu·​ro·​pep·​tide | \ ˌnu̇r-ə-ˈpep-ˌtīd How to pronounce neuropeptide (audio) , ˌnyu̇r- \

Definition of neuropeptide

: an endogenous peptide that influences neural activity or functioning

Examples of neuropeptide in a Sentence

Recent Examples on the Web Laughter can even boost our immune system response through the release of stress-and illness-reducing neuropeptides. Everyday Einstein Sabrina Stierwalt, Scientific American, "Why Do We Laugh?," 9 Feb. 2020 In human mothers, levels of this neuropeptide increase when labor begins. Jen Christensen, CNN, "Warming temperatures put women at risk of giving birth early, study says," 2 Dec. 2019 This might prompt your trigeminal nerve to release neuropeptides (brain molecules) that affect your meninges (three protective layers of tissue around your brain and spinal cord), ultimately leading to pain, the Mayo Clinic explains. Colleen Stinchcombe, SELF, "Yes, Your Workouts Could Actually Be Triggering Your Migraines," 23 June 2018 Palma’s preliminary studies indicate that Africanized honey bees produce more of these neuropeptides than other honey bees do. Elizabeth Pennisi, Science | AAAS, "What turns bees into killer bees?," 15 June 2018 Also the chemicals that control our brain, called neuropeptides, not only trigger hunger, but also trigger anger and impulsive behaviors. Natalie Dreier, ajc, "Is ‘hangry’ a real emotion? Scientist says yes," 7 May 2018 In the abdomens of male drosophila lie brain cells which produce a pleasure protein called neuropeptide corazonin, which triggers the release of sperm and seminal fluid. Melissa Healy,, "Fruit flies help explain why a male orgasm matters," 19 Apr. 2018 Using optogenetics, the scientists rigged up a system in which fruit flies flying into red light would activate that neuropeptide, effectively ejaculating. Melissa Healy,, "Fruit flies help explain why a male orgasm matters," 19 Apr. 2018 After a few days of having their corazonin neurons repeatedly stimulated, the flies appeared to have high levels of a protein called neuropeptide F, which spikes during rewarding situations, like eating sugar. National Geographic, "Fruit Flies Likely Enjoy Sex, Offering Clues Into Drug Addiction," 19 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'neuropeptide.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of neuropeptide

1973, in the meaning defined above

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The first known use of neuropeptide was in 1973

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Cite this Entry

“Neuropeptide.” Dictionary, Merriam-Webster, Accessed 2 Dec. 2020.

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More Definitions for neuropeptide


neu·​ro·​pep·​tide | \ ˌn(y)u̇r-ə-ˈpep-ˌtīd How to pronounce neuropeptide (audio) \

Medical Definition of neuropeptide

: an endogenous peptide (as an endorphin or an enkephalin) that influences neural activity or functioning

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