In electrical and mechanical trades and manufacturing, each half of a pair of mating connectors or fasteners is conventionally assigned the designation male or female. Wikipedia

The designation of male or female connectors in electrical and mechanical trades Wikipedia Disambiguation

Designation differentiating two dissimilar connectors which together form a physical connexion -- Used to describe connexions for spacecraft docking, electronics, plumbing, etc. Wikidata

The quality which distinguishes connectors, which may be male (fitting into another connector) and female (having another connector fit into it), or genderless/androgynous (capable of fitting together with another connector of the same type). Wiktionary