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Pronunciation varies by accent · noun
A multiparameter recording of brain waves used in the study of sleep.
Use polysomnography when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Polysomnography means A multiparameter recording of brain waves used in the study of sleep.
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The opposite depends on the specific sense.
Use polysomnography where its definition matches the intended context.
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