from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An instrument for graphically recording the form, strength, and variations of the arterial pulse.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a mechanical device used to measure blood pressure and pulse
from the GNU version of the Collaborative International Dictionary of English
- n. An instrument which, when applied over an artery, indicates graphically the movements or character of the pulse. See sphygmogram.
from The Century Dictionary and Cyclopedia
- n. 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.
sphygmo- (“pulse”) + -graph (Wiktionary)