Lewis Short
(adjective) : rāpīcĭus, a, um, rapum
* Of or belonging to rapes or turnips, rape-, turnip-: coles,Cato, R. R. 35, 2: semen,rape-seed,id. ib. 134, 1.— As subst.: rāpīcĭi, ōrum, m. (sc. caules), turnip-shoots, young turnipplants, Plin. 18, 13, 34, § 127.
Charlton T. Lewis, Charles Short, A Latin Dictionary