poly·pep·tide | \ˌpä-lē-ˈpep-ˌtīd \

Definition of polypeptide 

: a molecular chain of amino acids

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Other Words from polypeptide

polypeptidic \ˌpä-lē-(ˌ)pep-ˈti-dik \ adjective

Examples of polypeptide in a Sentence

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Try the award-winning Jelly Cleanser with the age-reversing polypeptide moisturizer and the Umbra Sheer SPF 30 to look your selfie-best while also protecting against harmful UV rays. Alexandra Deabler, Fox News, "Best skincare regiments for summer selfies," 8 May 2018 But in people who have this form of diabetes, cells of the pancreas amass clumps of a protein known as islet amyloid polypeptide (IAPP), which is very similar to the β amyloid that accumulates in Alzheimer’s disease. Mitch Leslie, Science | AAAS, "Could diabetes spread like mad cow disease?," 1 Aug. 2017 These include parvalbumin (PV), somatostatin (SOM), and vasoactive intestinal polypeptide (VIP)-expressing interneurons. Beth Mole, Ars Technica, "Scientists come up with neural mechanism—and possible fix—for chronic pain," 27 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'polypeptide.' 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 polypeptide

1903, in the meaning defined above

History and Etymology for polypeptide

International Scientific Vocabulary

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Time Traveler for polypeptide

The first known use of polypeptide was in 1903

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poly·pep·tide | \ˌpäl-i-ˈpep-ˌtīd \

Medical Definition of polypeptide 

: a molecular chain of amino acids

Other Words from polypeptide

polypeptidic \-(ˌ)pep-ˈtid-ik \ adjective

More from Merriam-Webster on polypeptide

Britannica.com: Encyclopedia article about polypeptide

Comments on polypeptide

What made you want to look up polypeptide? Please tell us where you read or heard it (including the quote, if possible).


exaggeratedly or childishly emotional

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