erin

n. (Eccl. Hist.) One of an ancient religious sect, so called from Cerinthus, a Jew, who attempted to unite the doctrines of Christ with the opinions of the Jews and Gnostics. Hook. [ 1913 Webster ]

n. [ Ir. Cf. Aryan. ] An early, and now a poetic, name of Ireland. [ 1913 Webster ]

n. a natural family including the true hedgehogs.
Syn. -- family Erinaceidae. [ WordNet 1.5 ]

a. [ L. erinaceus hedgehog. ] (Zoöl.) Of the Hedgehog family; like, or characteristic of, a hedgehog. [ 1913 Webster ]

n. the type genus of the family Erinaceidae, composed of hedgehogs.
Syn. -- genus Erinaceus. [ WordNet 1.5 ]

n. The sea holly. See Eryngo. [ 1913 Webster ]

n. (Min.) A hydrous arseniate of copper, of an emerald-green color; -- so called from Erin, or Ireland, where it occurs. [ 1913 Webster ]