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WordReference Random House Learner's Dictionary of American English © 2024or•bit /ˈɔrbɪt/USA pronunciation n. - Astronomythe curved path, usually rounded, that a planet, satellite, spaceship, etc., follows around a heavenly body: [countable]a comet with a very irregular orbit.[uncountable; in/into + ~]a spacecraft in orbit.
- the area of a nation's or a person's influence:[countable]within England's orbit.
v. - Astronomyto move or travel around in an orbital or rounded path: [~ + object]The satellite orbited the earth.[no object]The moon orbited above the horizon.
- Aerospace[~ + object] to send into orbit, as a satellite.
or•bit•al /ˈɔrbɪtəl/USA pronunciation adj. WordReference Random House Unabridged Dictionary of American English © 2024or•bit (ôr′bit),USA pronunciation n. - Astronomythe curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.
- the usual course of one's life or range of one's activities.
- the sphere of power or influence, as of a nation or person:a small nation in the Russian orbit.
- Physics(in Bohr theory) the path traced by an electron revolving around the nucleus of an atom.
- an orb or sphere.
- Anatomy
- the bony cavity of the skull that contains the eye;
eye socket. - Anatomythe eye.
- Zoologythe part surrounding the eye of a bird or insect.
v.t. - Astronomyto move or travel around in an orbital or elliptical path:The earth orbits the sun once every 365.25 days.
- Aerospaceto send into orbit, as a satellite.
v.i. - to go or travel in an orbit.
- Latin orbita wheel track, course, circuit
- Middle English 1350–1400
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