Definitions
1.nounOne of the male (masculine) sex or gender.
2.adjectiveBelonging to the sex which typically produces sperm, or to the gender which is typically associated with it."a male bird feeding a seed to a female"
3.adjectiveCharacteristic of this sex/gender. (Compare masculine, manly.)"stereotypically male interests, an insect with typically male coloration"
4.adjectiveTending to lead to or regulate the development of sexual characteristics typical of this sex."the male chromosome; like testes, ovaries also produce testosterone and some other male hormones"
5.adjective(grammar, less common than 'masculine') Masculine; of the masculine grammatical gender.
6.adjectiveOf instruments, tools, or connectors: designed to fit into or penetrate a female counterpart, as in a connector, pipe fitting or laboratory glassware.