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 This one uses hydrating glycerin, plus vitamins B3, E, zinc and peptides to strengthen hair and promote growth. Jackie Fields, Peoplemag, 4 July 2024 Like the shampoo, the conditioner is infused with the K18 peptide, which is then tag-teamed with moisturizing ceramides and polysaccharides for super soft post-shower hair. Jennifer Hussein, Allure, 4 July 2024 From our research and testing, Medik8 stands out for two things: retinol and peptides—its Crystal Retinal 3 and Oxy-R Peptides are two Vogue editor favorite face serums. Kiana Murden, Vogue, 26 June 2024 Enhancing your lip’s appearance, collagen-boosting peptides reduce fine lines for pillow-soft lips. India Espy-Jones, Essence, 4 June 2024 See all Example Sentences for peptide 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'peptide.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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

Dictionary Entries Near peptide

Cite this Entry

“Peptide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/peptide. Accessed 13 Jul. 2024.

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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!