n :  a device which graphically records motion or pressure; : esp  :  a recording device including an electric motor or clockwork that drives a usu. slowly revolving drum which carries a roll of plain or smoked paper and also having an arrangement for tracing on the paper by means of a stylus a graphic record of motion or pressure (as of the organs of speech, blood pressure, or respiration) often in relation to particular intervals of time ky*mo*graph*ic adj ky*mog*ra*phy n pl  -phies  
 
 
 
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