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planetary

Pronunciation: /ˈplanɪt(ə)ri/

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Definition of planetary

adjective

  • relating or belonging to a planet or planets: a planetary system the laws of planetary motion
  • relating to the earth as a planet: planetary air pollution and climatic change

Origin:

late 16th century: from late Latin planetarius 'relating to the planets' (recorded only as a noun meaning 'astrologer'), from planeta 'planet'

planetary in other Oxford dictionaries

Definition of planetary in the US English dictionary