/ ˌdaɪjuˈretɪk; NAmE / noun
( medical ) a substance that causes an increase in the flow of urine
► di·ur·et·ic adjective :
diuretic drugs / effects
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WORD ORIGIN
late Middle English : from Old French diuretique , or via late Latin from Greek diourētikos , from diourein urinate, from dia through + ouron urine.