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Pronunciation varies by accent · noun
(medicine) The presence of serous fluid (liquid) in the pleural cavity..
Use hydrothorax when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Hydrothorax means (medicine) The presence of serous fluid (liquid) in the pleural cavity..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use hydrothorax where its definition matches the intended context.
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