satellite

noun

1 the European Space Agency's ERS-1 satellite:

space station, space capsule, spacecraft;

artificial satellite, communications satellite, weather satellite, television satellite;

sputnik, COBE, IRAS;

informal Comsat.

2 the two small satellites of Mars:

moon, secondary planet.

3 Bulgaria was then a Russian satellite:

dependency, colony, protectorate, dominion, possession, holding;

historical fief, tributary.

adjective

a satellite state:

dependent, subordinate, subsidiary, ancillary;

puppet, vassal;

historical tributary.

satellite Oxford Dictionary of English