lichen planus is a noun meaning "an eruption of shiny flat-topped purplish (usually itchy) papules on the wrist and forearms and thighs". It carries one recorded sense.
an eruption of shiny flat-topped purplish (usually itchy) papules on the wrist and forearms and thighs
Definitions, synonyms and semantic relations for lichen planus come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.