allotrophic,a.Med.|æləʊˈtrɒfɪk| [mod.f.Gr. ἄλλος other, different + -τροϕ-ος nourishing (f. τρέϕειν to nourish) + -ic.] Susceptible of a change as to nutritive or physiological properties, without any change in physical or chemical characters. 1879in Syd. Soc.Lex.