heterogametic
adjective
het·ero·ga·met·ic ˌhe-tə-rō-gə-ˈme-tik 
: forming two kinds of gametes of which one produces male offspring and the other female offspring
the human male is heterogametic
heterogamety
ˌhe-tə-rō-ˈga-mə-tē
noun 
Word History
First Known Use
1910, in the meaning defined above
Medical Definition
heterogametic
adjective
het·ero·ga·met·ic -gə-ˈmet-ik -ˈmēt-
-ˈmēt- : forming two kinds of gametes of which one determines offspring of one sex and the other determines offspring of the opposite sex
the human male is heterogametic
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