paranasal sinus

pa·ra·na·salsinus

uncommon

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

Synonyms

paramountcy paramour paramyxovirus Parana paranasal Parana River parang paranoia paranoiac paranoic type schizophrenia

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