English Explanatory Dictionary

plethysmograph

English dictionary entry

Meanings

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

Pronunciation

/plɛˈðɪz.məˌɡɹæf/ /pləˈðɪz.məˌɡɹæf/

Word forms

plethysmograph plethysmographs

Etymology

Late 19th century: from Ancient Greek πληθυσμός (plēthusmós, “enlargement”) + -graph.

Derived words

photoplethysmograph plethysmography rheoplethysmograph
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