Spelling Bee Hive found 1 result for plethysmograph. This page contains the same results as searching for that word in the app.
plethysmograph - noun; Level 8; origin: Greek; pronunciation: plə̇ˈthizməˌgraf, -råf. a device that measures and records changes in the volume of an organ or body part by tracking the amount of blood present in or flowing through it.
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