crossbreed - an organism that is the offspring of genetically dissimilar parents or stock; especially offspring produced by breeding plants or animals of different varieties or breeds or species; "a mule is a cross between a horse and a donkey"organism, being - a living thing that has (or can develop) the ability to act or function independently crossbred - a hybrid (especially an animal produced by a cross between two pure breeds) dihybrid - a hybrid produced by parents that differ only at two gene loci that have two alleles each monohybrid - a hybrid produced by crossing parents that are homozygous except for a single gene locus that has two alleles (as in Mendel's experiments with garden peas) |