outbreed
/ˌaʊtˈbriːd/verb
(past and past participle -bred /-ˈbred/)with obj.［usu. as noun outbreeding］
- breed from parents not closely related远交, 非亲缘交配; 实行外婚制：
many specific genetic factors are known which regulate the degree of outbreeding.
已发现了控制远系繁殖程度的许多具体基因因素。