prōˈbenəsə̇d noun
( -s )
Etymology: pro pyl + ben zoic + -e- (perhaps from ben e ficial) + a cid
: a drug C 13 H 19 NO 4 S that acts on renal tubular function and is used to increase the concentration of some drugs (as penicillin) in the blood by inhibiting their excretion and to increase the excretion of urates in gout