noun
pemphigus
Medical term for a group of rare autoimmune blistering diseases affecting the skin and mucous membranes.
天疱瘡は自己免疫疾患の一種です。
Pemphigus is a type of autoimmune disease.
The term is composed of 天 (ten, 'heaven' or 'natural'), 疱 (hō, 'blister'), and 瘡 (sō, 'sore' or 'skin lesion'), reflecting the blistering nature of the disease. The exact historical derivation is uncertain.