| 释义 |
dizygotic, a. Biol.|daɪzaɪˈgɒtɪk|
[f. di-2 + zygote + -ic.]
Of twins: derived from two separate ova (and therefore not identical).
1930Nature 15 Nov. 766 Dizygotic twins are..on the whole inferior to their brothers and sisters in the physical measurements, but this is certainly not the case with monozygotic twins. 1952New Biol. XII. 27 Ordinary fraternal or dizygotic twins are due to the independent fertilization of two separate ova and may be of the same or of different sex. 1966Lancet 24 Dec. 1401/2 The frequency of monozygotic twins ranges from 1·9 to 6·9 per 1000 births, but of dizygotic twins from 2·7 to 32·2 per 1000. |