The Collaborative International Dictionary
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
a. 1 (context botany English) Having the male and female reproductive organs on separate plants (of the same species) rather than different parts of the same plant. 2 (context zoology rare English) Having two distinct sexes.
WordNet
adj. having male and female reproductive organs in separate plants or animals [syn: dioecian] [ant: monoecious]
Usage examples of "dioecious".
This sumptuous creature, this Eve just within the gate of an untried Paradise, untutored in the ways of the world, but on tiptoe to reach the fruit of the tree of knowledge,--alive to the moist vitality of that warm atmosphere palpitating with voices and music, as the flower of some dioecious plant which has grown in a lone corner and suddenly unfolding its corolla on some hot-breathing June evening, feels that the air is perfumed with strange odors and loaded with golden dust wafted from those other blossoms with which its double life is shared,--this almost over-womanized woman might well have bewitched him, but that he had a vague sense of a counter-charm.
They were dioecious, both male and female, makers of both pollen and eggs.
Dioecious individuals can then be selected from the monoecious population and these individuals crossed to breed out monoecism in subsequent generations.