Noun: paranasal 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 paranasal sinuses is a common cause of facial pain";
- sinus paranasales, nasal sinus
Derived forms: paranasal sinuses
Type of: sinus
Encyclopedia: Paranasal sinus