sphygmograph

An instrument for graphically recording the form, strength, and variations of the arterial pulse.

An instrument which, when applied over an artery, traces on a piece of paper moved by clockwork a curve which indicates the changes of tension of the blood within.

An instrument which, when applied over an artery, indicates graphically the movements or character of the pulse. See sphygmogram.

a mechanical device used to measure blood pressure and pulse