plethysmograph
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English[edit]
Etymology[edit]
Late 19th century: from Ancient Greek πληθυσμός (plēthusmós, “enlargement”) + -graph.
Pronunciation[edit]
Noun[edit]
plethysmograph (plural plethysmographs)
- (medicine) An instrument for measuring changes in volume within an organ or whole body (usually via fluctuations in the amount of fluid it contains).