essential amino acid

Từ điển WordNet v3.1 - WordNet Dictionary

noun

an amino acid that is required by animals but that they cannot synthesize;
must be supplied in the diet
• Hypernyms:
amino acid, aminoalkanoic acid
• Hyponyms:
arginine, histidine, isoleucine, leucine, lysine,
methionine, phenylalanine, threonine, tryptophan, tryptophane, valine