: 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 ant venom peptides also affect the ion channels in a way that is unique and even a little bizarre.
—
New Atlas, 25 Oct. 2024
Most of these medications, with the exception of Botox, are glucagon-like peptide 1 (GLP-1) receptor agonists and work by reducing your appetite.
—Karen Berger, Pharmd, Verywell Health, 24 Oct. 2024
Collagen-stimulating ingredients, such as peptides, retinol, and vitamin C, help firm and tighten the delicate skin around your eyes, too, with consistent use.
—Devon Abelman, Allure, 23 Oct. 2024
Key Ingredients: Ginseng, peptides, caffeine, squalane Best For: Skin laxity, fine lines, wrinkles, dark circles
Size: 0.5 oz.
—Emily Orofino, Vogue, 23 Oct. 2024
See all Example Sentences for peptide 
New Atlas, 25 Oct. 2024
Most of these medications, with the exception of Botox, are glucagon-like peptide 1 (GLP-1) receptor agonists and work by reducing your appetite.
—Karen Berger, Pharmd, Verywell Health, 24 Oct. 2024
Collagen-stimulating ingredients, such as peptides, retinol, and vitamin C, help firm and tighten the delicate skin around your eyes, too, with consistent use.
—Devon Abelman, Allure, 23 Oct. 2024
Key Ingredients: Ginseng, peptides, caffeine, squalane Best For: Skin laxity, fine lines, wrinkles, dark circles
Size: 0.5 oz.
—Emily Orofino, Vogue, 23 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 5 Nov. 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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