Definition of inferior planet in English:

inferior planet

Syllabification: in·fe·ri·or plan·et


  • Either of the two planets Mercury and Venus, whose orbits are closer to the sun than the earth’s. Compare with superior planet.
    More example sentences
    • Mercury and Venus are inferior planets, those with orbits smaller than the Earth's.
    • For the inferior planets, Mercury and Venus, when they are between earth and the Sun, they appear to move direct; however, when they are on the other side of the sun (Sun is between the planet and earth), they appear retrograde.
    • The inferior planets Mercury and Venus (which constitute the biological and lower levels of the mind) are under natural law; that is, they work as rhythm and reflex, you can't stop them.

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Word of the day astrogation
Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
(in science fiction) navigation in outer space