From The Collaborative International Dictionary of English v.0.48:
Orbit \Or"bit\, n. [L. orbita a track or rut made by a wheel,
course, circuit, fr. orbis a circle: cf. F. orbite. See 2d
Orb.]
1. (Astron.) The path described by a heavenly body in its
periodical revolution around another body; as, the orbit
of Jupiter, of the earth, of the moon.
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2. An orb or ball. [Rare & Improper]
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Roll the lucid orbit of an eye. --Young.
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3. (Anat.) The cavity or socket of the skull in which the eye
and its appendages are situated.
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4. (Zool.) The skin which surrounds the eye of a bird.
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