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The Collaborative International Dictionary
Dioecian

Dioecian \Di*[oe]"cian\, Dioecious \Di*[oe]"cious\, a. (Biol.) Having the sexes in two separate individuals; -- applied to plants in which the female flowers occur on one individual and the male flowers on another of the same species, and to animals in which the ovum is produced by one individual and the sperm cell by another; -- opposed to mon[oe]cious.

Wiktionary
dioecian

a. (context botany zoology English) dioecious

WordNet
dioecian

adj. having male and female reproductive organs in separate plants or animals [syn: dioecious] [ant: monoecious]