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planetology

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

Definition of planetology

plural plan·et·ol·o·gies

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

plan·et·o·log·i·cal play \ˌpla-nə-tə-ˈlä-ji-kəl\ adjective
plan·et·ol·o·gist play \ˌpla-nə-ˈtä-lə-jist\ noun


1865

First Known Use of planetology

1865


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