noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   An essential amino acid C₄H₉NO₃ found in most animal proteins. countable, uncountable
2. 2
   a colorless crystalline amino acid found in protein; occurs in the hydrolysates of certain proteins; an essential component of human nutrition wordnet

Synonyms

All synonyms

amino acidthr

Etymology

From threose.

Related phrases

essential amino acid

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