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

The study team analyzed how MDP’s active components, including manganese, phosphate and a peptide called DP1, protect cells and proteins from radiation exposure. —Ashley Strickland, CNN, 11 Dec. 2024

Jellyfish have long been used for wound healing, and its collagen peptides and polysaccharides promote cell migration and proliferation. —Tanya Benedicto Klich, Forbes, 3 Dec. 2024

Its blend of peptides and hyaluronic acid work together to firm and plump skin, diminishing sagging and fine lines in the process. —Jennifer Hussein, Allure, 2 Dec. 2024

It’s made with hyaluronic acid and fruit oils that soften lips, while peptides help to plump your pout. —Melony Forcier, Travel + Leisure, 29 Nov. 2024

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

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