ˈoutcrossing, vbl. n.
[f. outcross v.]
The crossing of an animal or plant with one not closely related to it.
| 1950 Brit. Jrnl. Psychol. XL. 132 Vigour is restored by out-crossing. 1973 Proctor & Yeo Pollination of Flowers xii. 382 It is seldom easy to establish the amount of out⁓crossing which takes place under natural conditions. 1973 B. J. Williams Evolution & Human Origins xiv. 249/2 Heterosis can occur as a result of outcrossing, or mating between breeding isolates. |