0-0 no options, so I'm just going to put an answer: 1. increasing diuresis (urine excretion). 2. an agent that does this, such as common substances like tea, coffee, and water, as well as medications. Types include loop diuretics, osmotic diuretics, potassium-sparing diuretics, and thiazide diuretics, with the most frequently prescribed being the thiazides.