on-orbit activity
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orbit — [ôr′bit] n. [MFr orbite < ML orbita < L, path, track < orbis, a circle, wheel] 1. the bony cavity containing the eye; eye socket 2. [L orbita] a) the actual or imaginary path taken by a celestial body during its periodic revolution… … English World dictionary
orbit — ► NOUN 1) the regularly repeated elliptical course of a celestial object or spacecraft around a star or planet. 2) a field of activity or influence. 3) the path of an electron round an atomic nucleus. 4) Anatomy the eye socket. ► VERB (orbited,… … English terms dictionary
orbit — I (New American Roget s College Thesaurus) n. path, track, circuit, revolution, course; region, range, sphere, realm, scope; province, sphere of influence. See astronautics, business. II (Roget s IV) n. 1. [Path described by one body revolving… … English dictionary for students
orbit — noun 1》 the regularly repeated elliptical course of a celestial object or spacecraft about a star or planet. ↘the path of an electron round an atomic nucleus. 2》 a field of activity or influence: they brought many friends within the orbit of… … English new terms dictionary
orbit — I. noun Etymology: Middle English, from Medieval Latin orbita, from Latin, rut, track, probably from orbis Date: 15th century the bony socket of the eye • orbital adjective II. noun Etymology: Latin orbita path, rut, orbit Date: 1696 … New Collegiate Dictionary
orbit — 1. noun 1) the monthly orbit of the Moon Syn: course, path, circuit, track, trajectory, rotation, revolution, circle; rare circumgyration 2) the problem comes outside our orbit Syn: sphere, sphere of influence … Thesaurus of popular words
Orbit Replaceable Unit — An Orbital Replaceable Unit is a modular component of spacecraft that can be replaced upon failure by a robot or by an Extra Vehicular Activity. The Hubble Space Telescope was designed with 70 such parts.[1] The electrical system of the… … Wikipedia
orbit — or·bit || É”rbɪt / É”Ëb n. course of planets or satellites around another heavenly body; path of protons or electrons circling the nucleus of an atom; usual course of activity; orb v. rotate around a heavenly body on a set course (Astronomy);… … English contemporary dictionary
Radio-Activity — For other uses of Radio activity and radioactivity , see Radioactive (disambiguation) . Infobox Album | Name = Radio Activity Type = studio Artist = Kraftwerk Released = December 1975 Recorded = Kling Klang Studio, Düsseldorf Genre = Electronic… … Wikipedia
Extra-vehicular activity — (EVA) is work done by an astronaut away from the Earth and outside of a spacecraft. The term most commonly applies to an EVA made outside a craft orbiting Earth (a spacewalk) but also applies to an EVA made on the surface of the Moon (a moonwalk) … Wikipedia
into orbit — informal into a state of heightened activity, anger, or excitement. → orbit … English new terms dictionary
