Sphygmograph

sfig′mō-graf, n. an instrument for ascertaining and recording the form, force, and frequency of the pulse-beat, and the changes it undergoes in certain morbid states.— adj. Sphyg′mic , pertaining to the pulse.— n. Sphyg′mogram , the record made by a sphygmograph.— adj. Sphygmograph′ic .— n. Sphygmog′raphy , the act of taking pulse-tracings.— adj. Sphyg′moid , pulse-like.— ns. Sphygmol′ogy , the science of the pulse; Sphygmōmānom′eter , Sphygmom′eter , an instrument for measuring the tension of blood in an artery; Sphyg′mophone , an instrument by means of which a pulse-beat makes a sound: Sphyg′mōscōpe , an instrument for making arterial pulsations visible; Sphyg′mus , the pulse. [Gr. sphygmos , the pulse, graphein , to write.]