Proline

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A nonessential amino acid C₅H₉NO₂ found in most animal proteins, especially collagen; its cyclic structure leads to kinks in the peptide chain of proteins. countable, uncountable
  2. 2
    an amino acid that is found in many proteins (especially collagen) wordnet

Etymology

Short for pyrrolidine.

Related phrases

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