planetology

[ plan-i-tol-uh-jee ]
/ ˌplæn ɪˈtɒl ə dʒi /

noun

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

Origin of planetology

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

OTHER WORDS FROM planetology

plan·e·to·log·i·cal [plan-i-tl-oj-i-kuh l] /ˌplæn ɪ tlˈɒdʒ ɪ kəl/, adjective plan·e·tol·o·gist, noun

Words nearby planetology

planetary nebula, planetary precession, planetesimal, planetesimal hypothesis, planetoid, planetology, planform, plangent, planh, plani-, planiform

British Dictionary definitions for planetologist

planetology
/ (ˌplænɪˈtɒlədʒɪ) /

noun

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