Lewis Short
(adjective) : mūrĭcātus, a, um, id.
* Shaped like a purple-fish, pointed.
* Lit.: folia spinosa, muricatis cacuminibus,Plin. 20, 23, 99, § 262.
* Transf. (acc. to murex, II. B. 3.), fearful, timid, as if walking over caltrops: gressus,Fulg. Myth. 1.
Charlton T. Lewis, Charles Short, A Latin Dictionary