plethysmograph

English

Etymology

Late 19th century: from Greek plēthusmos ‘enlargement’ (based on plēthus ‘fullness’) + -graph.

Noun

plethysmograph (plural plethysmographs)

  1. (medicine) An instrument for measuring changes in volume within an organ or whole body (usually via fluctuations in the amount of fluid it contains).

Derived terms
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