dermatomyositisWiktionary 原文英美构词拆解dermatodermato-前缀myositismyositis词干dermato-Dermal: dermis, but also often, broadly, skin or epidermis.词源说明From dermato- + myositis.释义名词noun1A disease of connective tissue, related to polymyositis, characterized by inflammation of the muscles and skin.