dioecism

enUK

di·oe·cious

also di·e·cious D0211200 (dī-ē′shəs)adj. Biology Having the male and female reproductive organs, especially flowers, on different individuals.
[From New Latin Dioecia, former class name : di- + Greek oikiā, a dwelling; see weik- in Indo-European roots.]
di·oe′cism (-sĭz′əm) n.di′oe′cy (-sē) n.

dioecism

(daɪˈiːsɪzəm) nthe condition of being dioecious