Crossword Genius

Holes in the head (7)

Ross

I believe the answer is:

sinuses

'holes in the head' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for sinuses that I've seen before include "holes in the head" , "Top spaces" , "Cavities in skull connecting with nostrils" , "Empty spaces" .)

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