n. A native, or one of the Scandinavian people, of Iceland. [ 1913 Webster ]
a. Of or pertaining to Iceland; relating to, or resembling, the Icelanders. [ 1913 Webster ]
n. The language of the Icelanders. It is one of the Scandinavian group, and is more nearly allied to the Old Norse than any other language now spoken. [ 1913 Webster ]
(Bot.) A kind of lichen (Cetraria Icelandica) found from the Arctic regions to the North Temperate zone. It furnishes a nutritious jelly and other forms of food, and is used in pulmonary complaints as a demulcent. [ 1913 Webster ]
(Min.) A transparent variety of calcite, the best of which is obtained in Iceland. It is used for the prisms of the polariscope, because of its strong double refraction. Cf. Calcite. [ 1913 Webster ]