Main Entry: pso·ri·a·sis

Pronunciation: \sə-ˈrī-ə-səs\

Function: noun

Etymology: New Latin, from Greek psōriasis, from psōrian to have the itch, from psōra itch; akin to Greek psēn to rub

Date: circa 1684

: a chronic skin disease characterized by circumscribed red patches covered with white scales

— pso·ri·at·ic \ˌsȯr-ē-ˈa-tik\ adjective or noun