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

peptidic

pep-ˈti-dik 

adjective

Examples of peptide in a Sentence

Recent Examples on the Web

Many collagen products are in the form of collagen peptide supplements. —Karen Berger, Pharmd, Verywell Health, 18 Apr. 2025

The resulting medication is a bit of a unicorn in the medical world: a peptide drug pill that can be taken at any time of day, with or without food. —Shannon Carroll, Quartz, 17 Apr. 2025

And brands like Goop and Sakara are promising consumers the opportunity to reverse aging via peptide injections and wellness supplements. —Thomas G. Moukawsher, MSNBC Newsweek, 17 Apr. 2025

But unlike those three medications, Eli Lilly’s pill is not a peptide medication. —Annika Kim Constantino, CNBC, 17 Apr. 2025

Word History

Etymology

International Scientific Vocabulary, from peptone

First Known Use

1906, in the meaning defined above

Phrases Containing peptide

• amyloid beta peptide
• atrial natriuretic peptide
• beta-amyloid peptide
• opioid peptide
• peptide bond
• peptide linkage

Rhymes for peptide

• abide
• allied
• applied
• aside
• astride
• azide
• backside
• bankside
• bastide
• bayside
• bedside
• belied

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

peptidic

pep-ˈtid-ik 

adjective