: 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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For blood pressure specifically, certain bioactive peptides in dairy have been shown to inhibit angiotensin-converting enzyme (ACE), which helps lower blood pressure, said Singar.
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Christina Manian, Rdn, Health, 24 Jan. 2025
This 2023 Best of Beauty winner uses ceramides and peptides—i.e., two ingredients your skin loves for suppleness and firmness—along with protecting antioxidants, to deliver all-day softness and plumpness while reinforcing your moisture barrier.
—Siena Gagliano, Allure, 23 Jan. 2025
At Extension Health, a clinic in Manhattan, such treatments include hyperbaric oxygen therapy, plasma exchange and ozone therapy, as well as a litany of supplements, peptides and hormones.
—Dana G. Smith, New York Times, 22 Jan. 2025
The product contains hyaluronic acid, niacinamide, three essential ceramides, and peptides.
—Toni Sutton, People.com, 30 Dec. 2024
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Christina Manian, Rdn, Health, 24 Jan. 2025
This 2023 Best of Beauty winner uses ceramides and peptides—i.e., two ingredients your skin loves for suppleness and firmness—along with protecting antioxidants, to deliver all-day softness and plumpness while reinforcing your moisture barrier.
—Siena Gagliano, Allure, 23 Jan. 2025
At Extension Health, a clinic in Manhattan, such treatments include hyperbaric oxygen therapy, plasma exchange and ozone therapy, as well as a litany of supplements, peptides and hormones.
—Dana G. Smith, New York Times, 22 Jan. 2025
The product contains hyaluronic acid, niacinamide, three essential ceramides, and peptides.
—Toni Sutton, People.com, 30 Dec. 2024
See all Example Sentences for peptide
Dictionary Entries Near peptide
Cite this Entry
“Peptide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/peptide. Accessed 30 Jan. 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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