pso ‧ ri ‧ a ‧ sis /səˈraɪəsəs, səˈraɪəsɪs/ BrE AmE noun [uncountable]
[ Date: 1600-1700 ; Language: Modern Latin ; Origin: Greek , from psora 'itch' ]
a skin disease that causes rough red areas where the skin comes off in small pieces
pso ‧ ri ‧ a ‧ sis /səˈraɪəsəs, səˈraɪəsɪs/ BrE AmE noun [uncountable]
[ Date: 1600-1700 ; Language: Modern Latin ; Origin: Greek , from psora 'itch' ]
a skin disease that causes rough red areas where the skin comes off in small pieces
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012