| 释义 |
diœcious, a.|daɪˈiːʃ(ɪ)əs|
[f. Diœcia + -ous.]
1. Bot. Of plants: Having the unisexual male and female flowers on separate plants.
1748–52Sir J. Hill Nat. Hist., Plants 291 (Jodr.) The rhamnus with terminatory spikes and quadrified diœcious flowers. 1789G. White Selborne (1853) 393 Hops are diœcious plants. 1877Darwin Forms of Fl. Introd. 3 A species tending to become diœcious, with the stamens reduced in some individuals and with the pistils in others.
2. Zool. Having the two sexes in separate individuals; sexually distinct.
1826Kirby & Sp. Entomol. (1828) IV. xlvii. 394 Certain intestinal worms in which the sexes are diœcious. 1880Gunther Fishes 157 All fishes are diœcious, or of distinct sex. 1882A. Macfarlane Consanguinity 8 Sex in Man is diœcious.
Hence diˈœciously adv., in a diœcious manner; diˈœciousness, diœcious state or condition.
1859Darwin Orig. Spec. iv. (1873) 74 Some..species of holly in North America, are, according to Asa Gray..more or less diœciously polygamous. 1874F. A. Kitchener Year's Bot. vii. 118 This idea of benefit to the plant in diœciousness. 1877Darwin Forms of Fl. vii. 279 Otherwise every step towards diœciousness would lead towards sterility. |