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Definition of Communications satellite

Babylon English

object placed into orbit around the Earth and designed to transmit communication signals
satellite which transmits and receives information (aids in the exchange of information, ideas, etc.)
Communications satellite Definition from Government Dictionaries & Glossaries
DOD Dictionary of Military Terms
(*) An orbiting vehicle, which relays signals between communications stations. There are two types: a. active communications satellite - A satellite that receives, regenerates, and retransmits signals between stations; b. passive communications satellite - A satellite which reflects communications signals between stations. Also called COMSAT."
  
Source: U.S. Department of Defense, Joint Doctrine Division. ( About )
Communications satellite Definition from Science & Technology Dictionaries & Glossaries
Telecommunication Standard Terms
An orbiting vehicle that relays signals between (a) terrestrial communications stations, (b) a terrestrial communications station and another communications satellite , or (c) other communications satellites.
RF Electronics
A "relay system" in orbit above the earth's surface for telecommunications signals such as voice, video and data; requires earth stations to transmit and receive the signals at the ground locations (downlinks). Commonly called a "bird."
Communications satellite Definition from Encyclopedia Dictionaries & Glossaries
English Wikipedia - The Free Encyclopedia
A communications satellite is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder; it creates a communication channel between a source transmitter and a receiver(s) at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military applications. There are over 2,000 communications satellites in Earth’s orbit, used by both private and government organizations.

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Communications satellite Definition from Language, Idioms & Slang Dictionaries & Glossaries
WordNet 2.0

Noun
1. an artificial satellite that relays signals back to earth; moves in a geostationary orbit
(hypernym) satellite, artificial satellite, orbiter
(part-holonym) communication system, communication equipment
(part-meronym) satellite receiver