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1. (astronomy) any of the large celestial bodies in the solar system that revolve around the sun; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune (and sometimes also Pluto) in order of their proximity to the sun
   - major planet
    
2. A person who follows or serves another
   - satellite
    
3. Any celestial body (other than comets or satellites) that revolves around a star

Derived forms: planets

Type of: acolyte, celestial body, follower, heavenly body

Part of: solar system

Encyclopedia: Planet Planet, Arizona Planet, Schmanet