'Polymorph' definitions:

Definition of 'polymorph'

From: WordNet
noun
An organism that can assume more than one adult form as in the castes of ants or termites

Definition of 'Polymorph'

From: GCIDE
  • Polymorph \Pol"y*morph\, n. [Gr. ? multiform; poly`s many + morfh` form: cf. F. polymorphe.] (Crystallog.) A substance capable of crystallizing in several distinct forms; also, any one of these forms. Cf. Allomorph. [1913 Webster]