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Glossary of Aerospace Terms
beginning with letter O
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orb Tweet Definition of orb Like Definition of orb on Facebook
noun 
  1. A spherical body; a globe; especially, one of the celestial spheres; a sun, planet, or star.
In the small orb of one particular tear. --Shak.
Whether the prime orb, Incredible how swift, had thither rolled. --Milton.
  1. One of the azure transparent spheres conceived by the ancients to be inclosed one within another, and to carry the heavenly bodies in their revolutions.
  2. A circle; especially, a circle, or nearly circular orbit, described by the revolution of a heavenly body; an orbit.
The schoolmen were like astronomers, which did feign eccentrics, and epicycles, and such engines of orbs. --Bacon.
You seem to me as Dian in her orb. --Shak.
In orbs Of circuit inexpressible they stood, Orb within orb. --Milton.
  1. (rare) A period of time marked off by the revolution of a heavenly body. --Milton.
  2. (poetic) The eye, as luminous and spherical.
A drop serene hath quenched their orbs. --Milton.
  1. (poetic) A revolving circular body; a wheel.
The orbs Of his fierce chariot rolled. --Milton.
  1. (rare) A sphere of action. --Wordsworth.
But in our orbs we'll live so round and safe. --Shak
  1. Same as Mound, a ball or globe.
  2. A translucent sphere appearing in flash photography.
verb 
  1. (poetic) To form into an orb or circle. --Milton. Lowell.
  2. (poetic) (transitive) To encircle; to surround; to inclose.
  3. (transitive) In the television programme/program w:Charmed, Charmed, to utilize the type of teleportation particularly associated with whitelighters.
  4. (poetic) (intransitive) To become round like an orb.
     
orbit Tweet Definition of orbit Like Definition of orbit on Facebook
noun 
  1. A circular or elliptical path of one object around another object.
The Moon's around the Earth takes nearly one month to complete.
  1. A sphere of influence; an area of control.
In the post WWII era, several eastern European countries came into the of the Soviet Union.
  1. The course of one's usual progression, or the extent of one's typical range.
The convenience store was a heavily travelled point in her daily , as she purchased both cigarettes and lottery tickets there.
  1. (anatomy) The bony cavity containing the eyeball; the eye socket.
  2. (physics) The path an electron takes around an atom's nucleus
  3. (mathematics) A collection of points related by the evolution function of a dynamical system.
verb 
  1. To circle or revolve around another object.
The Earth orbits the Sun.
  1. To move around the general vicinity of something.
The harried mother had a cloud of children orbiting her, asking for sweets.
     
orbiter Tweet Definition of orbiter Like Definition of orbiter on Facebook
noun 
  1. an object which orbits another, especially a spacecraft that orbits a planet etc without landing on it
     

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