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10 dictionary results for: Orbit

Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

or·bit

[awr-bit] Pronunciation Key

–noun

1.	the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.

2.	the usual course of one's life or range of one's activities.

3.	the sphere of power or influence, as of a nation or person: a small nation in the Russian orbit.

4.	Physics. (in Bohr theory) the path traced by an electron revolving around the nucleus of an atom.

5.	an orb or sphere.

Anatomy.

a.	the bony cavity of the skull that contains the eye; eye socket.

the eye.

7.	Zoology. the part surrounding the eye of a bird or insect.

–verb (used with object)

8.	to move or travel around in an orbital or elliptical path: The earth orbits the sun once every 365.25 days.

9.	to send into orbit, as a satellite.

–verb (used without object)

10.	to go or travel in an orbit.

[Origin: 1350–1400; ME < L orbita wheel track, course, circuit

]

—Related forms

or·bit·ar·y, adjective

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

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American Heritage Dictionary - Cite This Source - Share This

or·bit (ôr'bĭt) Pronunciation Key
n.

1. The path of a celestial body or an artificial satellite as it revolves around another body.
2. One complete revolution of such a body.
3. A range of activity, experience, or knowledge.
4. A range of control or influence: "What magnetism drew these quaking ruined creatures into his orbit?" (Malcolm Lowry). See Synonyms at range.
The path of a body in a field of force surrounding another body; for example, the movement of an atomic electron in relation to a nucleus.
1. A range of activity, experience, or knowledge.
2. A range of control or influence: "What magnetism drew these quaking ruined creatures into his orbit?" (Malcolm Lowry). See Synonyms at range.
Either of two bony cavities in the skull containing an eye and its external structures; an eye socket.

v. or·bit·ed, or·bit·ing, or·bits

v. tr.

To put into an orbit: orbit a satellite.
To revolve around (a center of attraction): The moon orbits Earth.

v. intr.
To move in an orbit.

[Middle English orbite, eye socket, from Old French, from Latin orbita, orbit, probably from orbis.]

(Download Now or Buy the Book)
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

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Online Etymology Dictionary - Cite This Source - Share This
orbit (n.)

1392, "the eye socket," from M.L. orbita, transf. use of L. orbita "wheel track, course, orbit" (see orb). Astronomical sense first recorded 1696 in Eng.; it was in classical L., revived in Gerard of Cremona's transl. of Avicenna. The verb is attested from 1946, from the noun.

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WordNet - Cite This Source - Share This

orbit
noun
1.	the (usually elliptical) path described by one celestial body in its revolution about another; "he plotted the orbit of the moon"
2.	a particular environment or walk of life; "his social sphere is limited"; "it was a closed area of employment"; "he's out of my orbit" [syn: sphere]
3.	an area in which something acts or operates or has power or control: "the range of a supersonic jet"; "a piano has a greater range than the human voice"; "the ambit of municipal legislation"; "within the compass of this article"; "within the scope of an investigation"; "outside the reach of the law"; "in the political orbit of a world power" [syn: scope]
4.	the path of an electron around the nucleus of an atom
5.	the bony cavity in the skull containing the eyeball [syn: eye socket]
verb
1.	move in an orbit; "The moon orbits around the Earth"; "The planets are orbiting the sun"; "electrons orbit the nucleus" [syn: orb]

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American Heritage Dictionary of Idioms - Cite This Source - Share This

orbit

see in orbit.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Company.

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The American Heritage Science Dictionary - Cite This Source - Share This

orbit (ôr'bĭt) Pronunciation Key
Noun

The path followed by a celestial body or artificial satellite as it revolves around another body due to the force of gravity. Orbits are nearly elliptical or circular in shape and are very closely approximated by Kepler's laws of planetary motion.
One complete revolution of such a body. See Note at solar system.
A stable quantum state of an electron (or other particle) in motion around an atomic nucleus. See more at orbital.
Either of two bony hollows in the skull containing the eye and its associated structures.

Verb

To move in an orbit around another body.
To put into an orbit, as a satellite is put into orbit around the Earth.

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American Heritage New Dictionary of Cultural Literacy, Third Edition - Cite This Source - Share This
orbit

In astronomy, the path followed by an object revolving around another object, under the influence of gravitation (see satellite). In physics, the path followed by an electron within an atom. The planets follow elliptical orbits around the sun (see ellipse).

Note: Informally, something is “in orbit” when its actions are controlled by an external agency or force: “The countries of eastern Europe were once in the orbit of the Soviet Union.”

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American Heritage Stedman's Medical Dictionary - Cite This Source - Share This

orbit or·bit (ôr'bĭt)
n.
See orbital cavity.

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Free On-line Dictionary of Computing - Cite This Source - Share This

Orbit
A Scheme compiler.
["Orbit: An Optimising Compiler for Scheme", D.A. Kranz et al, SIGPLAN Notices 21(7):281-292 (Jul 1986)].
(1994-10-28)

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Webster's Revised Unabridged Dictionary - Cite This Source - Share This

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.

2. An orb or ball. [Rare & Improper]

Roll the lucid orbit of an eye. --Young.

3. (Anat.) The cavity or socket of the skull in which the eye and its appendages are situated.

4. (Zo["o]l.) The skin which surrounds the eye of a bird.

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