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: 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
This lash serum is formulated with a ton of vitamins, peptides, and other nourishing ingredients.
—Mia Meltzer, Rolling Stone, 31 Oct. 2024
Every product is formulated with their exclusive Commence Complex, a blend of alfalfa extract to support hair growth, quinoa peptides to add volume, acai stem cells for antioxidants that provide anti-aging perks and a Lactobacillus ferment, bio-fermentation technology that calms the scalp.
—Celia Shatzman, Forbes, 30 Oct. 2024
Its formula, packed with growth-stimulating biotin and peptides, worked hard to stimulate her scalp and boost density from the roots, which filled in her patchy spots and amped up her volume.
—Alyssa Brascia, People.com, 29 Oct. 2024
Blood tests can also help diagnose systolic heart failure, such as the blood test for B-type natriuretic peptide (BNP), a hormone made by the heart.
—Alexandria Nyembwe, Phd, Rn, Health, 4 Nov. 2024
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Word History
Etymology
International Scientific Vocabulary, from peptone
First Known Use
1906, in the meaning defined above
Phrases Containing peptide
Dictionary Entries Near peptide
Cite this Entry
“Peptide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/peptide. Accessed 23 Nov. 2024.
Kids 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
More from Merriam-Webster on peptide
Britannica.com: Encyclopedia article about peptide
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