SINUSITIS

n. (Medicine) inflammation of the sinuses (especially the sinuses connected to the nasal passages)

Sinusitis is an inflammation of the paranasal sinuses, which may or may not be as a result of infection, from bacterial, fungal, viral, allergic or autoimmune issues. Newer classifications of sinusitis refer to it as rhinosinusitis, taking into account the thought that inflammation of the sinuses cannot occur without some inflammation of the nose as well (rhinitis).
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Sinusitis refers to an inflammation of the sinuses, airspaces within the bones of the face. [more]Sinusitis - Community and Resources

Noun
1. inflammation of one of the paranasal sinuses
(hypernym) inflammation, redness, rubor
(hyponym) pansinusitis

n. sinusitis, inflammation of the sinuses (esp. the sinuses connected to the nasal passages) (Medicine)