Inner Planet (noun) Definition, Meaning & Examples

noun Astronomy.
  1. any of the planets in our solar system whose orbits lie between the sun and the asteroid belt, namely, Mercury, Venus, Earth, and Mars, all of which are terrestrial planets.
noun
  1. any of the planets Mercury, Venus, earth, and Mars, whose orbits lie inside the asteroid belt
    Inner Planet (noun) Definition, Meaning & Examples

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