diuretic
Concise Oxford English Dictionary © 2008 Oxford University Press:
diuretic /ˌdʌɪjʊ(ə)ˈrɛtɪk/ Medicine
▶adjective causing increased passing of urine. ▶noun a diuretic drug.
– origin ME: from OFr. diuretique, or via late L. from Gk diourētikos, from diourein ‘urinate’.
'diuretic' also found in these Oxford entries:

