‖ Triœcia Bot.
(traɪˈiːʃɪə)
[mod.L. (Linnæus), f. Gr. τρι- tri- + οἶκος house: cf. Diœcia, Monœcia.]
The third order in the Linnæan class Polygamia, comprising plants having male, female, and hermaphrodite flowers on different individuals. Hence triœcious (-ˈiːʃ(ɪ)əs) a., triˈoicous a., belonging to this order, or having the flowers thus distributed (whence triˈœciously adv.); triœcism (-ˈiːsɪz(ə)m), triœcious character or condition.
| 1760 J. Lee Introd. Bot. ii. xxvi. (1765) 138 *Trioecia, comprehending such Plants as have the Polygamy on three distinct Plants. |
| 1860 Mayne Expos. Lex., Triœcius, Bot...*triœcious. 1866 Treas. Bot., Triœcious, Trioicus, having male flowers on one individual, female on another, and hermaphrodite on a third. |
| 1891 Cent. Dict., *Triœciously..*Trioicous. |