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nounany of several eruptive skin diseases characterized by hard thick lesions grouped together and resembling lichens growing on rockstype of:
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nounany thallophytic plant of the division Lichenes; occur as crusty patches or bushy growths on tree trunks or rocks or bare ground etc.type of:
Synonyms & Similar Words
fungus skin disease disease of the skin skin disorder lichen ruber planus lichen planus cladonia rangiferina crotal crottal crottle horsehair lichen horsetail lichen iceland lichen iceland moss lecanora reindeer lichen reindeer moss roccella roccella tinctoria usnea barbata ascolichen basidiolichen beard lichen beard moss cetraria islandica arctic moss