lichen sclerosus et atrophicus
noun
lichen scle·ro·sus et atro·phi·cus
| \ -sklə-ˈrō-səs-et-ˌā-ˈtrō-fi-kəs
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Medical Definition of lichen sclerosus et atrophicus
: a chronic skin disease that is characterized by the eruption of flat white hardened papules with central hair follicles often having black keratotic plugs