Definition of "paranasal" []

• Of or relating to the paranasal sinuses, a group of four paired air-filled spaces that surround the nasal cavity. (adjective)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "Intensity-modulated radiation therapy (IMRT) appears to be a safe and effective treatment for cancers in the nose area, known as paranasal sinus cancers, new data suggest."
• "The radiologist's fingers glow against the back-lit film, red rivers tracing blackened craters of the paranasal sinus."
• "Vestigial structures gone bad: appedixes, paranasal sinuses, congenital anomalies of many gill arch remnants."