Noun: nasal sinus
- Any of the paired sinuses in the bones of the face adjacent to the nasal cavity that are lined with mucous membrane that is continuous with the lining of the nasal cavities
"Inflammation of the nasal sinuses is a common cause of facial pain";
- paranasal sinus, sinus paranasales
Derived forms: nasal sinuses
Type of: sinus
Encyclopedia: Nasal sinus