Iceland lichen

Từ điển WordNet v3.1 - WordNet Dictionary

noun

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
• Syn:
Iceland moss, Cetraria islandica
• Hypernyms:
lichen
• Member Holonyms:
Cetraria, genus Cetraria