: 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
Examples of peptide in a Sentence
Recent Examples on the Web
The cream is infused with ceramides for moisture, peptides for volume, and niacinamide to support the skin barrier.
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Kiana Murden, Vogue, 13 Oct. 2024
The formula features peptides and niacinamide to soothe, alleviate dark circles, and tackle concerns associated with maturing skin.
—Annie Blackman, Allure, 9 Oct. 2024
Therefore, the brand blended their pure retinol complex with nourishing and hydrating ingredients like ceramides, peptides, glycerin, shea butter and squalene to create a formula that could be used daily without irritation.
—Jackie Fields, People.com, 1 Oct. 2024
The first-of-its-kind formula works on a molecular level thanks to its small peptide size that enables it to reverse damage from the inside out.
—Celia Shatzman, Forbes, 1 Oct. 2024
See all Example Sentences for peptide 
Kiana Murden, Vogue, 13 Oct. 2024
The formula features peptides and niacinamide to soothe, alleviate dark circles, and tackle concerns associated with maturing skin.
—Annie Blackman, Allure, 9 Oct. 2024
Therefore, the brand blended their pure retinol complex with nourishing and hydrating ingredients like ceramides, peptides, glycerin, shea butter and squalene to create a formula that could be used daily without irritation.
—Jackie Fields, People.com, 1 Oct. 2024
The first-of-its-kind formula works on a molecular level thanks to its small peptide size that enables it to reverse damage from the inside out.
—Celia Shatzman, Forbes, 1 Oct. 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.
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“Peptide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/peptide. Accessed 21 Oct. 2024.
Copy CitationKids Definition
peptide
noun
pep·tide
ˈpep-ˌtīd 
: any of various substances that are usually obtained by the partial breakdown of proteins
Medical Definition
peptide
noun
pep·tide
ˈpep-ˌtīd
: 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
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