sex·u·al 
(sĕksh-əl)
(sĕksh-əl)adj.
1. Relating to, involving, or characteristic of sex or sexuality, or the sex organs and their functions: sexual partners; sexual fantasies; sexual dysfunction.
2. Relating to the sexes or to gender: sexual politics.
3.
a. Relating to, involving, or being reproduction characterized by the union of male and female gametes.
b. Able to reproduce in this way; fertile.
[Late Latin sexuālis, from Latin sexus, sex.]
sexu·al·ly adv.