polytomous
/pəˈlɪtəməs/adjective
1 Logic and Statistics. Divided into several (usually three or more) groups or subsets; (in later use) involving or relating to a categorical variable that can take any of three or more values. rare before 20th cent.
2 Biology. Of physical structures.
3 Taxonomy. Of diagrams and mental constructs.
Origin
Mid 19th century; earliest use found in William S. Hamilton (1788–1856), philosopher. From poly- + ancient Greek -τόμος + -ous.