Tryptophan An essential amino acid that is necessary for normal growth in infants and for NITROGEN balance in adults. It is a precursor of INDOLE ALKALOIDS in plants. It is a precursor of SEROTONIN (hence its use as an antidepressant and sleep aid). It can be a precursor to NIACIN, albeit inefficiently, in mammals.
Trp - definition from Biology-Online.org
[symbol for tryptophan and its radicals.
MediLexicon Trp - Medical Dictionary Definition for Term 'Trp'
[1. Symbol for tryptophan and its radicals.