WordReference Random House Unabridged Dictionary of American English © 2026
out•cross
(v. out′krôs′, -kros′;n. out′krôs′, -kros′),USA pronunciation v.t.
n.
- Animal Husbandry, Botanyto cross (animals or plants) by breeding individuals of different strains but, usually, of the same breed.
- Animal Husbandryto produce (a hybrid) by this method.
n.
- Animal Husbandry, Botanya hybrid animal or plant so produced.
- Animal Husbandryan act of outcrossing.
- out- + cross 1885–90