'Cetraria Icelandica' definitions:

Definition of 'Cetraria Icelandica'

From: GCIDE

Iceland moss \Ice"land moss`\ (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]