Lewis & Short

mucro, ōnis, m., a sharp point or edge; esp., the point of a sword, the sword’s point (class.; cf.: acies, cuspis).

  1. I. Lit.: mucro falcis, Col. 4, 25, 1: dentis, Plin. 8, 3, 4, § 8: folii, id. 16, 10, 16, § 38: crystalli, id. 37, 2, 9, § 26: cultri, edge, Juv. 14, 216: medio jugulaberis ensis, sword’s point, Ov. M. 12, 484: coruscus, Verg. A. 2, 333.
    1. B. Transf.
      1. 1. A sword: nisi mucrones militum tremere voltis, Cic. Phil. 14, 3, 6: mortalis, Verg. A. 12, 740.
      2. 2. A point, extremity, end (poet. and in post-Aug. prose), Lucr. 2, 520: faucium, Plin. 6, 13, 15, § 38.
  2. II. Trop., edge, point, sharpness: censorii stili, Cic. Clu. 44, 123: tribunicius, id. Leg. 3, 9, 21: defensionis tuae, id. Caecin. 29, 84: ingenii, sharpness, Quint. 10, 5, 16.