Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps


Noun: paranasal sinus
  1. 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
    - sinus paranasales, nasal sinus

Derived forms: paranasal sinuses

Type of: sinus

Encyclopedia: Paranasal sinus