D defs.my
Entry 4 senses Webster, 1913

masculine

/(măs"kū̇*lĭn)/ · mas·cu·line · IPA /ˈmæskjələn/
01 a. Of the male sex; not female.
  1. 1.
    Of the male sex; not female.
    “Thy masculine children, that is to say, thy sons.” Chaucer.
  2. 2.
    Having the qualities of a man; suitable to, or characteristic of, a man; virile; not feminine or effeminate; strong; robust.
    “That lady, after her husband's death, held the reins with a masculine energy.” Hallam.
  3. 3.
    Belonging to males; appropriated to, or used by, males.[R.]
  4. 4.
    Having the inflections of, or construed with, words pertaining especially to male beings, as distinguished from feminine and neuter. See Gender.(Gram.) See: Gender