A communications satellite or comsat is an artificial satellite sent to space for the purpose of telecommunications. Modern communications satellites use a variety of orbits including geostationary orbits, Molniya orbits, elliptical orbits and low (polar and non-polar) Earth orbits. For fixed (point-to-point) services, communications satellites pr...
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http://en.wikipedia.org/wiki/Communications_satellite
(from the article `Earth satellite`) ...atmosphere and to make astronomical observations. Weather satellites transmit photographs of cloud patterns and measurements of other ... In order to augment the terrestrial and aircraft-based mobile radiotelephone systems discussed in Cellular radio and Personal communication systems, ... [5 r...
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http://www.britannica.com/eb/a-z/c/119
A spacecraft in Earth orbit that supports communication over long distances by relaying or reflecting radio signals sent from the ground to other points on the surface. The possibility of using artificial satellites for radio communications over global distances had been discussed before World War...
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a piece of equipment sent into space that travels around the Earth and passes television, radio, and telephone signals from one place to another
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[
n] - an artificial satellite that relays signals back to earth
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http://www.webdictionary.co.uk/definition.php?query=communications%20satell
noun an artificial satellite that relays signals back to earth; moves in a geostationary orbit
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https://www.encyclo.co.uk/local/20974
Click images to enlargeRelay station in space for sending telephone, television, telex, and other messages around the world. Messages are sent to and from the satellites via ground stations. Most communications satellites are in geostationary orbit, appearing to hang fixed over one point on the Earth's surface. The fi...
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an artificial earth satellite that facilitates communications, as radio, television, and telephone transmissions, by means of the reflection or the amplification and retransmission of signals between stations on earth or in space.
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https://www.infoplease.com/dictionary/communications-satellite
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