View synonyms for inner planet

inner planet

[ in-er plan-it ]

Phonetic (Standard)IPA

noun

, Astronomy.

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.

inner planet

any of the planets Mercury, Venus, earth, and Mars, whose orbits lie inside the asteroid belt

inner planet

Any of the four planets Mercury, Venus, Earth, and Mars, whose orbits lie nearest the Sun. The inner planets are of similar size and have high densities compared to the larger gas giants among the outer planets. They are composed mostly of rock and metal and are relatively slow to rotate, with solid surfaces, no rings, and few moons.
Also called terrestrial planet
Compare outer planetSee also inferior planet

First recorded in 1950–55

Meadows began to play inner planet combinations that occasionally paid, though at short odds.

"The most probable one is the next inner planet, Aphrodite," replied Morey.

The inner planet revolved about it with one side glowing low red heat and the other side piled high with frozen atmosphere.

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