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planetology

[ plan-i-tol-uh-jee ]

noun

  1. the branch of astronomy that deals with the physical features of the planets.

planetology

/ ˌplænɪˈtɒlədʒɪ /

noun

  1. astronomy the study of the origin, composition, and distribution of matter in the planets

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Other Words From

  • plan·e·to·log·i·cal [plan-i-tl-, oj, -i-k, uh, l], adjective
  • planetolo·gist noun

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Word History and Origins

Origin of planetology1

First recorded in 1905–10; planet + -o- + -logy

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