mor·phol·o·gy

– noun
1. the branch of biology dealing with the form and structure of organisms.
2. the form and structure of an organism considered as a whole.
3. a. the patterns of word formation in a particular language, including inflection, derivation, and composition.
b. the study and description of such patterns.
c. the study of the behavior and combination of morphemes.
4. the form or structure of anything.
5. the study of the form or structure of anything.