tertium quid

1. 1.

   some third thing similar to two opposites but distinct from both

   Broaderopposition

Questions about tertium quid

What does tertium quid mean?

tertium quid means "some third thing similar to two opposites but distinct from both".

Is tertium quid a common word?

tertium quid 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.