WordReference Random House Unabridged Dictionary of American English © 2026
essen′tial ami′no ac′id, [Biochem.]
  1. Biochemistryany amino acid that is required by an animal for growth but that cannot be synthesized by the animal's cells and must be supplied in the diet.
  • 1935–40

'essential amino acid' also found in these entries (note: many are not synonyms or translations):
amino acid - arginine - histidine - phenylalanine - threonine - tryptophan - valine

Forum discussions with the word(s) "essential amino acid" in the title:


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