What is the meaning of paranasal sinus?

noun

  • 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.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). paranasal sinus. Retrieved September 22, 2026, from http://smartdefine.org/paranasal_sinus/definitions/1212124
ChicagoWordNet. 2010. "paranasal sinus" http://smartdefine.org/paranasal_sinus/definitions/1212124 (accessed September 22, 2026).
HarvardWordNet 2010, paranasal sinus, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/paranasal_sinus/definitions/1212124>.
MLAWordNet. "paranasal sinus" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/paranasal_sinus/definitions/1212124>