释义 |
inner planet
inner planetn. See terrestrial planet.inner planet n (Celestial Objects) any of the planets Mercury, Venus, earth, and Mars, whose orbits lie inside the asteroid belt in′ner plan′et n. any of the four planets closest to the sun: Mercury, Venus, Earth, or Mars. [1950–55] inner planet
inner planet[¦in·ər ′plan·ət] (astronomy) Any of the four planets (Mercury, Venus, Earth, and Mars) in the solar system whose orbits are closest to the sun. ThesaurusSeeterrestrial planet |