backcross

vt.vi. 使回交, (使)逆代杂交

动词过去式:backcrossed 过去分词:backcrossed 现在分词:backcrossing 第三人称单数:backcrosses 

back.cross

v.tr.（及物动词）
back.crossed,back.cross.ing,back.cross.es
To cross (a hybrid) with one of its parents, or with an individual genetically identical to one of its parents.
反交，回交：与（一混血儿）父母的一方或与其父母中在个体遗传方面完全一致的一方的杂交
n.（名词）
The act of making such a cross.
逆代杂交：这种杂交的行为
An individual resulting from such a cross.
逆代杂交个体：从这样的杂交产生的个体

【引伸】
back.cross.
n.（名词）