Term: tryptophan: an amino acid that occurs in proteins; is essential for growth and normal metabolism; a precursor of niacin
Broader: essential amino acid: an amino acid that is required by animals but that they cannot synthesize; must be supplied in the diet | Unrelated: situation comedy: a humorous television program based on situations that could arise in everyday life
Broader: essential amino acid: an amino acid that is required by animals but that they cannot synthesize; must be supplied in the diet | Unrelated: repressor: an agent that represses
Broader: essential amino acid: an amino acid that is required by animals but that they cannot synthesize; must be supplied in the diet | Unrelated: quagga: mammal of South Africa that resembled a zebra; extinct since late 19th century
Broader: essential amino acid: an amino acid that is required by animals but that they cannot synthesize; must be supplied in the diet | Unrelated: larix: larches
Broader: essential amino acid: an amino acid that is required by animals but that they cannot synthesize; must be supplied in the diet | Unrelated: anorgasmia: absence of an orgasm in sexual relations
Broader: essential amino acid: an amino acid that is required by animals but that they cannot synthesize; must be supplied in the diet | Unrelated: facial: cranial nerve that supplies facial muscles
Broader: essential amino acid: an amino acid that is required by animals but that they cannot synthesize; must be supplied in the diet | Unrelated: cross country: a long race run over open country
Broader: essential amino acid: an amino acid that is required by animals but that they cannot synthesize; must be supplied in the diet | Unrelated: supertitle: translation of the words of a foreign opera (or choral work) projected on a screen above the stage
Broader: essential amino acid: an amino acid that is required by animals but that they cannot synthesize; must be supplied in the diet | Unrelated: ginseng: Chinese herb with palmately compound leaves and small greenish flowers and forked aromatic roots believed to have medicinal powers
Broader: essential amino acid: an amino acid that is required by animals but that they cannot synthesize; must be supplied in the diet | Unrelated: ph: (from potential of Hydrogen) the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter; provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution (where 7 is neutral and greater than 7 is more basic and less than 7 is more acidic)