frontal sinus

1. 1.

   one of a pair of cavities in the frontal bone

   Broadersinus

Questions about frontal sinus

What does frontal sinus mean?

frontal sinus means "one of a pair of cavities in the frontal bone".

Is frontal sinus a common word?

frontal sinus 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.