: 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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The lightweight formula contains Japanese peony extract, niacinamide, ceramides, hyaluronic acid, vitamin C and peptides.
—
Celia Shatzman, Forbes, 26 Feb. 2025
Protein is broken down into amino acids and peptides, which trigger hormones that regulate your appetite.
—Johna Burdeos, Health, 26 Feb. 2025
Fabricant pointed to peptides, which supplement makers could use to create products such as those that support muscle growth.
—Tina Reed, Axios, 24 Feb. 2025
This plumping, soothing, and smoothing formula also features peptides, shea butter, and hyaluronic acid—because a little extra TLC never hurt anyone.
—Angela Trakoshis, Allure, 24 Feb. 2025
See All Example Sentences for peptide
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Celia Shatzman, Forbes, 26 Feb. 2025
Protein is broken down into amino acids and peptides, which trigger hormones that regulate your appetite.
—Johna Burdeos, Health, 26 Feb. 2025
Fabricant pointed to peptides, which supplement makers could use to create products such as those that support muscle growth.
—Tina Reed, Axios, 24 Feb. 2025
This plumping, soothing, and smoothing formula also features peptides, shea butter, and hyaluronic acid—because a little extra TLC never hurt anyone.
—Angela Trakoshis, Allure, 24 Feb. 2025
See All Example Sentences for peptide
Cite this Entry
“Peptide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/peptide. Accessed 9 Mar. 2025.
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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