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1. A sphere or spherical object.
a. A celestial body, such as the sun or moon.
b. Archaic The earth.
3. One of a series of concentric transparent spheres thought by ancient and medieval astronomers to rotate about the earth and carry the celestial bodies.
4. A globe surmounted by a cross, used as a symbol of monarchial power and justice.
5. An eye or eyeball.
6. Archaic Something of circular form; a circle or orbit.
v. orbed, orb·ing, orbs
1. To shape into a circle or sphere.
2. Archaic To encircle; enclose.
v.intr. Archaic
To move in an orbit.

[Middle English orbe, orbit, from Old French, from Latin orbis, circle, disk, orbit; see orbh- in Indo-European roots.]
References in classic literature ?
Arme, Warriours, Arme for fight, the foe at hand, Whom fled we thought, will save us long pursuit This day, fear not his flight; so thick a Cloud He comes, and settl'd in his face I see Sad resolution and secure: let each His Adamantine coat gird well, and each Fit well his Helme, gripe fast his orbed Shield, Born eevn or high, for this day will pour down, If I conjecture aught, no drizling showr, But ratling storm of Arrows barbd with fire.
She will not remain orbed in a thought, but rushes into persons; and when each person, inflamed to a fury of personality, would conquer all things to his poor crotchet, she raises up against him another person, and by many persons incarnates again a sort of whole.
For, although the sun is lost to us forever, the moon, full- orbed or slender, remains to us.