morph
noun
1. (linguistics) A physical form representing some morpheme in language. It is a recurrent distinctive sound or sequence sounds.
2. (linguistics) An allomorph: one of a set of realizations that a morpheme can have in different contexts.
3. (biology) Local variety of a species, distinguishable from other populations of the species by morphology or behaviour.
4. A computer-generated gradual change from one image to another.