NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,468 terms related to cancer and medicine.
We offer a widget that you can add to your website to let users look up cancer-related terms. Get NCI’s Dictionary of Cancer Terms Widget.
- maxillary sinus
- listen (MAK-sih-LAYR-ee SY-nus)
A type of paranasal sinus (a hollow space in the bones around the nose). There are two large maxillary sinuses, one in each of the maxillary bones, which are in the cheek area next to the nose. The maxillary sinuses are lined with cells that make mucus to keep the nose from drying out.