plethysmograph
/pləˈθɪzməgrɑːf/noun
- Medicine an instrument for recording and measuring variation in the volume of a part of the body, especially as caused by changes in blood pressure【医】体积描记器。
派生词
plethysmographic
adjective词源
late 19th cent.: from Greek plēthusmos 'enlargement' （based on plēthus 'fullness'） + -GRAPH.