The act of sexual intercourse. / Sexual activities between individuals.

(biology) The practice, in some insects, of all the offspring of one sex being produced before all the offspring of the other

(criminology) A criminal activity that involves forced sexual acts upon a person who is usually held hostage as a slave.

(health sciences, sexology) Knowledge required to advance and protect one's own sexual health and well-being.

A person with whom someone has had sex.

plural of sexual partner

(evolutionary theory) A type of natural selection where members of the sexes acquire distinct forms either because the members of one sex choose mates with particular features or because in the competition for mates among the members of one sex only those with certain traits succeed.

A physical difference between male and female individuals of the same species.

plural of sexual orientation

Alternative form of nonsexual.