from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A brittle, grayish-brown, Arctic lichen (Cetraria islandica) sometimes used as a food or in medicine.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A lichen, Cetraria islandica, that resembles a moss.

from the GNU version of the Collaborative International Dictionary of English

  • 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.
  • n. a lichen. See Iceland Moss.

from The Century Dictionary and Cyclopedia

  • n. etc. See the nouns.

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

  • n. lichen with branched flattened partly erect thallus that grows in mountainous and Arctic regions; used as a medicine or food for humans and livestock; a source of glycerol


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