Plethysmograph

Definition:

• (n.) An instrument for determining and registering the variations in the size or volume of a limb, as the arm or leg, and hence the variations in the amount of blood in the limb.

Compare plethysmograph with other words:

fluid vs. plethysmograph

fluctuation vs. plethysmograph

organ vs. plethysmograph

plethysmograph vs. volume

plethysmograph vs. plethysmography