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Definition of solar system noun from the Oxford Advanced American Dictionary

     

    solar system

     noun
    noun
     
     
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  1. 1the solar system [singular] the sun and all the planets that move around it
  2. 2[countable] any group of planets that all move around the same star We don't know how many solar systems there are in each galaxy.
See solar system in the Oxford Advanced Learner's Dictionary
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