histidine


histidine
histidine [his′ti dēn΄, his′tidin]
n.
[< Gr histion (see HISTIOCYTE) + -INE3]
a nonessential amino acid, C3H3N2CH2CH(NH) 2COOH, that is essential for growth in infancy: see AMINO ACID

English World dictionary. . 2014.