Lewis Short
rancĭdŭlus, a, um
* Adj. dim. [rancidus] (post-Aug.).
* Lit., stinking, rank, rancid: opsonia,Juv. 11, 135.
* Trop., disgusting, loathsome, offensive: rancidulum quiddam locutus,Pers. 1, 33; cf. Mart. 7, 34, 7.
Charlton T. Lewis, Charles Short, A Latin Dictionary