peptide

noun

pep·​tide ˈpep-ˌtīd How to pronounce peptide (audio)
: any of various amides that are derived from two or more amino acids by combination of the amino group of one acid with the carboxyl group of another and are usually obtained by partial hydrolysis of proteins
peptidic adjective

Examples of peptide 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.
Many collagen products are in the form of collagen peptide supplements. Karen Berger, Pharmd, Verywell Health, 18 Apr. 2025 The resulting medication is a bit of a unicorn in the medical world: a peptide drug pill that can be taken at any time of day, with or without food. Shannon Carroll, Quartz, 17 Apr. 2025 And brands like Goop and Sakara are promising consumers the opportunity to reverse aging via peptide injections and wellness supplements. Thomas G. Moukawsher, MSNBC Newsweek, 17 Apr. 2025 But unlike those three medications, Eli Lilly’s pill is not a peptide medication. Annika Kim Constantino, CNBC, 17 Apr. 2025 See All Example Sentences for peptide

Word History

Etymology

International Scientific Vocabulary, from peptone

First Known Use

1906, in the meaning defined above

Time Traveler
The first known use of peptide was in 1906

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Cite this Entry

“Peptide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/peptide. Accessed 23 Apr. 2025.

Kids Definition

peptide

noun
pep·​tide ˈpep-ˌtīd How to pronounce peptide (audio)
: any of various substances that are usually obtained by the partial breakdown of proteins

Medical Definition

peptide

noun
pep·​tide ˈpep-ˌtīd How to pronounce peptide (audio)
: any of various amides that are derived from two or more amino acids by combination of the amino group of one acid with the carboxyl group of another and are usually obtained by partial hydrolysis of proteins
peptidic adjective

More from Merriam-Webster on peptide

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