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n.
inflammation of the lining of the nose and paranasal sinuses. Rhinosinusitis is a common condition caused by allergies, infection, immune deficiencies, mucociliary transport abnormalities, trauma, drugs, or tumours. See rhinitis, sinusitis.
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rhi·no·si·nu·si·tis (ri″no-si″nəs-itis) [rhino- + sinus + -itis] inflammation of the paranasal sinuses; called also nasosinusitis.Medical dictionary. 2011.