peptide

American  

[pep-tahyd] / ˈpɛp taɪd /

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.

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peptide British  

/ ˈpɛptaɪd /

noun

1. 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

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peptide Scientific  

/ 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.

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Etymology

Origin of peptide

1905–10; pept(ic) + -ide ( def. )

Compare meaning

How does peptide compare to similar and commonly confused words? Explore the most common comparisons:

• peptide vs. polypeptide

Example Sentences

This boost in sensitivity could improve the detection of low abundance crosslinked peptides, which are valuable for mapping the structures of large protein complexes.

From Science Daily

Their approach uses a cyclic peptide that can pass through the small intestine, known as the DNP peptide.

From Science Daily

And they now have an ally in Health and Human Services Secretary Robert F. Kennedy Jr., who wants to make peptides easier—and legal—to buy.

From The Wall Street Journal

Common ingredients include hyaluronic acid to help with hydration, peptides for skin plumping, retinals for fine lines and vitamin C for brightening the under-eye area.

From Los Angeles Times

One side displays adjuvant molecules arranged at carefully controlled nanometer distances, while the opposite side presents selected antigens such as peptides or proteins from tumors or pathogens.

From Science Daily