From Longman Dictionary of Contemporary Englishpsoriasispso‧ri‧a‧sis /səˈraɪəsɪs/ noun [uncountable] MIa skin disease that causes rough red areas where the skin comes off in small pieces
Examples from the Corpus
psoriasis• It will provide a range of high-technology treatment for skin diseases including dermatitis, skin cancer and psoriasis.• Programme LUNCH/ZMU/27/10/93 We've had an amazing response to our search for a cure for the chronic skin complaint psoriasis.• Available on prescription, Calcipotriol is advised for the skin condition psoriasis.• Known as the sunshine vitamin because it's absorbed from the sun, Vitamin D is a well-known treatment for psoriasis.• Other people who get psoriasis only on knees and elbows may need to fend people off.• I talk about a rash on my arm that looks like an allergic reaction but is in fact the heartbreak of psoriasis.Origin psoriasis (1600-1700) Modern Latin Greek, from psora “itch” 