Intercross

Webster's Dictionary of the English Language

·vt & ·vi To cross each other, as lines.

II. Intercross ·noun The process or result of cross fertilization between different kinds of animals, or different varieties of plants.

III. Intercross ·vt & ·vi To fertilize by the impregnation of one species or variety by another; to impregnate by a different species or variety.