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sex
noun
°Either of two main divisions (either male or female) into which many organisms can be placed, according to reproductive function or organs; gender.
"What sex is that hamster?"
°The distinguishing property, quality, or assemblage of properties by which organisms are classified as female or male on the basis of their reproductive organs and functions; the set of properties by which male is distinguished from female.
"The effect of the medication is dependent upon age, sex, and other factors."
verb
°To determine the sex of; often in reference to newly-hatched chicks.
"It is not easy to sex a hyena."
°(colloquial) To have sex with.
"The passionate lovers sexed each other every night."
synonyms: gender, sexuality, coitus, sexual intercourse