Orb

n. [Lat. orbis, Fr., It., & Sp. orbe.]

1. A solid or hollow body of a round form; a globe; a sphere.
2. Especially, one of the celestial spheres; a sun, planet, or star.

Whether the prime orb, Incredible how swift, had thither rolled. Milton. 3. The eye, as luminous and spherical. [Poet.] A drop serene hath quenched their orbs. Milton. 4. A circle; especially, a circle or nearly circular orbit, described by the revolution of a heavenly body; an orbit; also, one of the azure transparent spheres conceived by the ancients to inclose one within another, and carrying the heavenly bodies. The schoolmen were like astronomers, which did figure eccentricities, and epicycles, and such engines of orbs. Bacon. You seem to me as Dian in her orb. Shak. In orbs Of circuit inexpressible they stood, Orb within orb. Milton.

5. Hence, a period of time marked off by the revolution of a heavenly body. Shak.
6. A revolving circular body; a wheel.

The orbs Of his fierce chariot rolled. Milton.

7. A globe surmounted by a cross, used as an emblem of power and sovereignty in the coronation of sovereigns;—called also globe, and ball.
8. (Mil.) A body of troops drawn up in a circle. [Obs.]

Syn.—Globe; ball; sphere. See GLOBE.