Icelandic

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Of or relating to Iceland or its people, language, or culture.
• noun The North Germanic language of Iceland.

from The Century Dictionary.

• Pertaining to Iceland, a large island belonging to Denmark, in the northernmost part of the Atlantic ocean, east of Greenland.
• noun The language of the Icelanders or of their literature.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Of or pertaining to Iceland; relating to, or resembling, the Icelanders.
• noun 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.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• proper noun A North Germanic language, the national tongue of Iceland.
• adjective Of or relating to the North Germanic language spoken in Iceland.
• adjective Of or relating to the natives or inhabitants of Iceland.
• adjective Of, relating to, or originating from Iceland.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a Scandinavian language that is the official language of Iceland
• adjective of or relating to Iceland or its people or culture and language