satellite
Definitions
A celestial body orbiting a planet or star.
An artificial object placed in orbit around the earth or another planet to collect information or for communication.
A country or organization that is dependent on or controlled by another more powerful one.
Examples
The communication satellite orbits the Earth to provide global internet coverage.
Scientists launched a new satellite to monitor changes in the polar ice caps.
Synonyms
moon orbiting body spacecraft attendant subordinate follower