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

This deeply hydrating treatment offers touchable softness to brittle strands and delivers moisture directly to the cortex with a potent blend of squalane, humectants, and peptides. —Jailynn Taylor, Allure, 30 Apr. 2025

The Alma Ted company supplies the doctor with a topical solution of growth factors and peptides. —Caroline Tell, Forbes.com, 24 Apr. 2025

Effective methods for collagen banking include at-home practices such as utilizing retinoid, Vitamin C, peptides, and hyaluronic acid. —Cierra Black, Essence, 18 Apr. 2025

Most supplements contain a form of collagen peptides. —Karen Berger, Pharmd, Verywell Health, 18 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