Merriam-Webster Collegiate Dictionary - morph

 noun combining form  Etymology: International Scientific Vocabulary, from ~ous one having (such) a form isomorph MORPH  I. noun  Etymology: back-formation from ~eme  Date: 1947  1.  a. allo~  b. a distinctive collocation of phones (as a portmanteau form) that serves as the realization of more than one ~eme in a context (as the French du for the sequence of de and le)  2.  a. a local population of a species that consists of interbreeding organisms and is distinguishable from other populations by ~ology or behavior though capable of interbreeding with them  b. a phenotypic variant of a species  II. verb  Etymology: short for meta~ose  Date: 1985  intransitive verb to undergo transformation; especially to undergo transformation from an image of one object into that of another especially by means of computer-generated animation  transitive verb to change the form or character of ; transform  III. abbreviation ~ology