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Affixes
sphygm(o)-
The pulse.
Greek sphugmos, pulse.
A sphygmomanometer is the standard doctor's instrument for measuring blood pressure by means of an inflatable cuff around the arm linked to some type of pressure gauge or manometer; a sphygmograph is an instrument which produces a line, on a sphygmogram, recording the strength and rate of a person's pulse.
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