Lewis & Short

mascŭlīnus, a, um, adj. [masculus], male, masculine; of human beings, animals, and plants (not in Cic.; perh. not ante-Aug.).

  1. I. Lit.: membra, the male parts, Phaedr. 4, 14, 15: facies, App. M. 7, p. 190, 20: rapa rotunda masculini sexus, Plin. 19, 5, 25, § 75.
  2. II. Transf.
        1. a. (Cf. masculus, II. B.) Manly, worthy of manhood: masculini viri, v. l. Quint. 5, 12, 20; al. leg. masculi.
        2. b. In gram., of gender, masculine: masculina Graeca nomina, Quint. 1, 5, 61: ut si quaeratur, funis masculinum sit an femininum, id. 1, 6, 3: masculino genere cor enuntiavit Ennius, Caesell. Vindex ap. Gell. 7, 2.
          Hence, adv. (post-class.).
    1. A. mascŭlīnē, in the masculine gender, Arn. 1, 36: masculine etiam dicebant frontem, Paul. ex Fest. p. 151 Müll.: caelum masculine veteres dixerunt, Charis. p. 55 P.
    2. * B. mascŭlīnĭter, in the masculine gender, Vet. Interpr. Iren. 1, 1.