English noun: essential amino acid | |||
1. | essential amino acid (substance) an amino acid that is required by animals but that they cannot synthesize; must be supplied in the diet | ||
Broader (hypernym) | amino acid, aminoalkanoic acid | ||
Narrower (hyponym) | arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, tryptophane, valine | ||