rare A point used in triangulation as a substitute for a preferred but inaccessible nearby station.
Measurements taken from such points are typically adjusted so as to match those that would have been taken from the preferred point.
2A small facility or building equipped for a particular purpose, which serves an auxiliary or subsidiary role to that of a larger principal one.
3Specifically. A radio or television station or transmitter used to retransmit the signal of another station, so as to improve coverage or reception over a particular area.
4In senses relating to artificial satellites. . A space station orbiting a planet (now rare).
5An installation at which artificial satellites are monitored or controlled, or which is used for transmitting and receiving signals to and from satellites.
6A radio or television station whose broadcasts are transmitted via satellite.
Mid 19th century. From satellite + station.