psoriasis

名词 psoriasis:

1. a chronic skin disease characterized by dry red patches covered with scales; occurs especially on the scalp and ears and genitalia and the skin over bony prominences

pso.ri.a.sis

n.（名词）
A noncontagious inflammatory skin disease characterized by recurring reddish patches covered with silvery scales.
牛皮癣：一种非传染性的皮肤炎症，以不断出现的覆有色鳞的红斑为症状

来源：
Greek psôriasis [itch, mange]
希腊语 psôriasis [痒，兽疥癣]
from psôrian [to have the itch]
源自 psôrian [发痒]
from psôra [itch]
源自 psôra [痒]

【引伸】
pso.riat.ic