Synonyms for lichen

Noun

1. lichen, skin disease, disease of the skin, skin disorder, skin problem, skin condition

usage: any of several eruptive skin diseases characterized by hard thick lesions grouped together and resembling lichens growing on rocks

2. lichen, fungus

usage: any thallophytic plant of the division Lichenes; occur as crusty patches or bushy growths on tree trunks or rocks or bare ground etc.