peptide

[ pep-tahyd ]

noun

, Biochemistry.

1. a compound containing two or more amino acids in which the carboxyl group of one acid is linked to the amino group of the other.

peptide

/ ˈpɛptaɪd /

noun

1. See polypeptide, peptide bond
   any of a group of compounds consisting of two or more amino acids linked by chemical bonding between their respective carboxyl and amino groups See also peptide bond polypeptide

peptide

/ pĕp′tīd′ /

1. A chemical compound that is composed of a chain of two or more amino acids and is usually smaller than a protein. The amino acids can be alike or different. Many hormones and antibiotics are peptides.

Word History and Origins

Origin of peptide¹

1905–10; pept(ic) + -ide ( def )

Example Sentences

When consumed after exercise, these peptides are easier for our bodies to pick up and use to build our own collagen proteins.

From Outside Online

Meanwhile, major technical advances were accelerating the study of nucleic acids and peptides, long linear molecules directly specified by genetic code templates.

From Quanta Magazine

The pain signals trigger an additional release of CGRP and other peptides.

From Science News

I triple-treated myself with peptides in the morning, and then I walked out, and then I treated myself again.

From MIT Technology Review

This whey protein powder from Optimum Nutrition is made from a combination of whey isolates, concentrates, and peptides to deliver the best of the best when it comes to building lean muscles.

From Popular-Science

He has devoted his life to replicating that peptide and when he puts it back in the patient, their cancer goes away.

From The Daily Beast