Lewis & Short

† cōnus, i, m., = κῶνος, a cone.

  1. I. In gen., Lucr. 4, 430 and 432; Cic. N. D. 1, 10, 24; 2, 18, 47 al.
  2. II. Esp., of conical bodies,
    1. A. The apex of a helmet, Verg. A. 3, 468; Ov. M. 3, 108; Plin. 10, 1, 1, § 2; cf. Isid. Orig. 18, 14, 2.
    2. B. The cone of the cypress, Col. 6, 7, 2.
    3. C. A kind of sundial, Vitr. 9, 8, 1.