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Intercross

The process or result of cross fertilization between different kinds of animals, or different varieties of plants. We have reason to believe that occasional intercrosses take place with all animals and plants. (Darwin)

1. To cross each other, as lines.

2. (Science: biology) to fertilize by the impregnation of one species or variety by another; to impregnate by a different species or variety.

Origin: Intercrossed; Intercrossing.