Search Result for "blood urea nitrogen":

The Collaborative International Dictionary of English v.0.48:

BUN \BUN\ n. [acronym] (Med.) same as blood urea nitrogen; the concentration of nitrogen in blood present in the form of urea; -- used as a measure of kidney function. Note: Blood usually contains 10 to 15 mg of nitrogen per 100 ml in the form of urea. --Stedman. [PJC]