inferior planet

1. 1.

   any of the planets whose orbit lies inside the earth's orbit

   Broaderplanet

   NarrowerMercuryVenus

Questions about inferior planet

What does inferior planet mean?

inferior planet means "any of the planets whose orbit lies inside the earth's orbit".

Is inferior planet a common word?

inferior planet is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.