Iceland moss

noun

Ice·​land moss ˈīs-lən(d)- 

-ˌlan(d)-

: a lichen (Cetraria islandica) of mountainous and arctic regions sometimes used in medicine or as food

Word History

First Known Use

1785, in the meaning defined above

Medical Definition

Iceland moss

noun

Ice·​land moss ˌī-slən(d)-ˈmȯs, ˌī-ˌslan(d)- 

: a lichen of the genus Cetraria (C. islandica) of mountainous and arctic regions sometimes used in medicine or as food