/ ˈsætəlaɪt; NAmE / noun
1.
an electronic device that is sent into space and moves around the earth or another planet. It is used for communicating by radio, television, etc. and for providing information :
a weather / communications satellite
The interview came live by satellite from Hollywood.
satellite television / TV (= broadcast using a satellite )
a satellite broadcast / channel / picture
2.
a natural object that moves around a larger natural object in space :
The moon is a satellite of earth.
3.
a town, a country or an organization that is controlled by and depends on another larger or more powerful one :
satellite states
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WORD ORIGIN
mid 16th cent. (in the sense follower ): from French satellite or Latin satelles , satellit- attendant.