An instrument that measures the force or pressure of blood flow in blood vessels; a hemodynamometer.
From hemo- (Greek haima, blood) plus dynamo- (Greek dynamis, power or force) plus -meter (Greek metron, measure). The word literally means blood-force-measurer.
Hemadynameter sounds like a sci-fi gadget, but it represents the birth of modern cardiology—doctors finally had a way to objectively measure what was happening inside patients' circulatory systems!
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