also  Ko*rot*kow sounds  or  Ko*rot*kov sounds  n pl :  arterial sounds heard through a stethoscope applied to the brachial artery distal to the cuff of a sphygmomanometer that change with varying cuff pressure and that are used to determine systolic and diastolic blood pressure
 
Korotkoff, Nikolai Sergieyevich (b 1874), Russian physician. Korotkoff introduced the auscultation method of determining blood pressure in 1905.
 
 
 
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