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planetology

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noun plan·et·ol·o·gy \ˌpla-nə-ˈtä-lə-jē\

Definition of planetology

plural

planetologies

  1. :  a branch of astronomy that deals with the condensed matter of the solar system and especially with the planets and their moons

planetological

play \ˌpla-nə-tə-ˈlä-ji-kəl\ adjective

planetologist

play \ˌpla-nə-ˈtä-lə-jist\ noun

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First Known Use of planetology

1865

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