lichen
English Thesaurus
1. any thallophytic plant of the division Lichenes; occur as crusty patches or bushy growths on tree trunks or rocks or bare ground etc. (noun.plant)
hypernym | : | fungus, |
definition | : | an organism of the kingdom Fungi lacking chlorophyll and feeding on organic matter; ranging from unicellular or multicellular organisms to spore-bearing syncytia (noun.plant) |
hyponym | : | ascolichen, |
definition | : | a lichen in which the fungus component is an ascomycete (noun.plant) |
hyponym | : | basidiolichen, |
definition | : | a lichen in which the fungus component is a basidiomycete (noun.plant) |
hyponym | : | lecanora, |
definition | : | any lichen of the genus Lecanora; some used in dyeing; some used for food (noun.plant) |
hyponym | : | horsehair lichen, horsetail lichen, |
definition | : | any of several lichens of the genus Alectoria having a thallus consisting of filaments resembling hair (noun.plant) |
hyponym | : | crotal, crottal, crottle, |
definition | : | any of several lichens of the genus Parmelia from which reddish brown or purple dyes are made (noun.plant) |
hyponym | : | cetraria islandica, iceland lichen, iceland moss, |
definition | : | 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 (noun.plant) |
member meronym | : | division lichenes, lichenes, |
definition | : | comprising the lichens which grow symbiotically with algae; sometimes treated as an independent group more or less coordinate with algae and fungi (noun.plant) |
2. any of several eruptive skin diseases characterized by hard thick lesions grouped together and resembling lichens growing on rocks (noun.state)
hyponym | : | lichen planus, lichen ruber planus, |
definition | : | an eruption of shiny flat-topped purplish (usually itchy) papules on the wrist and forearms and thighs (noun.state) |
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