crossbreeding
n 1: (genetics) the act of mixing different species or varieties
of animals or plants and thus to produce hybrids [syn:
{hybridization}, {hybridisation}, {crossbreeding},
{crossing}, {cross}, {interbreeding}, {hybridizing}]
2: reproduction by parents of different races (especially by
white and non-white persons) [syn: {miscegenation},
{crossbreeding}, {interbreeding}]