1. 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
   - Iceland moss, Cetraria islandica

Type of: lichen

Part of: Cetraria, genus Cetraria

• overhanded
• overhang
• overhasty
• overhaul
• overhead
• overhead projector
• overhead railway
• overhear
• overheat
• overheated
• overheating
• overindulge
• overindulgence
• overindulgent
• overinflated
• overjealous
• overjoy
• overjoyed
• overkill
• overladen
• overland
• overlap
• overlapping
• overlarge
• overlay