[het.ero.sex.u.al] adj [ISV] (1892) 1 a: of, relating to, or characterized by a tendency to direct sexual desire toward the opposite sex b: of, relating to, or involving sexual intercourse between individuals of opposite sex
2: of or relating to different sexes -- het.ero.sex.u.al.i.ty n -- het.ero.sex.u.al.ly adv
[2]heterosexual n (1920): a heterosexual person