: 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
Most peptides have not been studied outside of animals, meaning there’s little data to demonstrate their safety or effectiveness in humans.
—
Aria Bendix,
NBC news,
30 June 2026
For the peptide industry's payment stack, the test comes when the FDA's advisers sit down to weigh in on its bestselling compounds in late July.
—
Boaz Sobrado,
Forbes.com,
30 June 2026
On Monday, the Food and Drug Administration posted documents outlining concerns about a lack of evidence for the batch of peptides that are set to be considered by an FDA panel in about three weeks.
—
Will Stone,
NPR,
30 June 2026
There will also be a meeting scheduled before the end of February 2027, in which advisors will discuss five additional peptides.
—
Beth Mole,
ArsTechnica,
30 June 2026
See All Example Sentences for peptide
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Aria Bendix,
NBC news,
30 June 2026
For the peptide industry's payment stack, the test comes when the FDA's advisers sit down to weigh in on its bestselling compounds in late July.
—
Boaz Sobrado,
Forbes.com,
30 June 2026
On Monday, the Food and Drug Administration posted documents outlining concerns about a lack of evidence for the batch of peptides that are set to be considered by an FDA panel in about three weeks.
—
Will Stone,
NPR,
30 June 2026
There will also be a meeting scheduled before the end of February 2027, in which advisors will discuss five additional peptides.
—
Beth Mole,
ArsTechnica,
30 June 2026
See All Example Sentences for peptide
Cite this Entry
“Peptide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/peptide. Accessed 5 Jul. 2026.
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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