noun ·Uncommon ·Advanced level

Definitions

Noun

1. 1
   Any polymer of (same or different) amino acids joined via peptide bonds.
2. 2
   a peptide containing 10 to more than 100 amino acids wordnet
3. 3
   Any such polymer that is not folded into a secondary structure of a protein.
4. 4
   A small protein containing up to 100 amino acids; see also oligopeptide.

Etymology

From poly- + peptide.

Related phrases

pancreatic polypeptidepolypeptide chainamino acidpeptide bondsecondary structure

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.