Either of the two planets Mercury and Venus, whose orbits are closer to the sun than the earth’s.
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.
Definition of inferior planet in:
- The US English dictionary