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Pronunciation varies by accent · noun
(medicine) The simultaneous inflammation of multiple sinuses.
Use polysinusitis when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Polysinusitis means (medicine) The simultaneous inflammation of multiple sinuses.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use polysinusitis where its definition matches the intended context.
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