Abbr. m., M.
2. Virile; manly.
3. Botany. a. Relating to or designating organs, such as anthers or antheridia, that produce gametes capable of fertilizing those produced by female organs. b. Bearing stamens but not pistils; staminate: male flowers.
4. Designating an object, such as an electric plug, configured for insertion into a fitted bore or socket.
[Middle English, from Old French, from Latin māsculus diminutive of mās, male.]