Origin: Latin suffix -al
Heterosexual has 4 different meanings across 2 categories:
a person having a sexual orientation to persons of the opposite sex
"After years of questioning his feelings, Mark finally came out as heterosexual when he realized he was deeply in love with another man's partner."
A heterosexual person, or other heterosexual organism.
"After years of living alone, Mark finally moved in with his boyfriend to start their life together as a heterosexual couple."
sexually attracted to members of the opposite sex
"After years of questioning his feelings, Mark finally realized that he was heterosexual and deeply in love with a woman from his neighborhood."
Sexually attracted to members of the opposite sex.
"After years of confusion, he finally realized that his feelings for women meant he was heterosexual."