I. ˌhe-tə-rō-ˈsek-sh(ə-)wəl, -ˈsek-shəl adjective
Etymology: International Scientific Vocabulary
Date: 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 -ˌsek-shə-ˈwa-lə-tē noun
• het·ero·sex·u·al·ly -ˈsek-sh(ə-)wə-lē, -ˈsek-shə-lē adverb
II. noun
Date: 1920
: a heterosexual person