noun A spherical body; a sphere, especially one of the celestial spheres; a sun, planet, or star.
noun Celestial sphere; one of the azure transparent spheres conceived by the ancients to be enclosed one within another, and to carry the heavenly bodies in their revolutions.
noun A structural motif or finial in the shape of a sphere.
noun An orbit of an heavenly body
noun The time period of an orbit.
noun The eye, seen as a luminous and spherical entity.
noun Any revolving circular body, such as a wheel.