: 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
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This lightweight, oil-free gel cream is formulated with ingredients such as hyaluronic acid, peptides, niacinamide, and vegan squalane to provide intense hydration and reduce the appearance of fine lines and wrinkles.
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Nora Colomer, Fox News, 17 May 2024
Grande Cosmetics Lash Enhancing Serum It’s packed with powerful ingredients, like peptides, amino acids, and hyaluronic acid, that work together to nourish and coat individual hair follicles.
—Taylor Jean Stephan, Peoplemag, 16 May 2024
See all Example Sentences for peptide 
Nora Colomer, Fox News, 17 May 2024
Grande Cosmetics Lash Enhancing Serum It’s packed with powerful ingredients, like peptides, amino acids, and hyaluronic acid, that work together to nourish and coat individual hair follicles.
—Taylor Jean Stephan, Peoplemag, 16 May 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 29 May. 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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