牛皮癣 niúpíxuǎn psoriasis Definitions Defs Origin Strokes Stroke Words Sentences Sents 牛皮 niúpí cowhide ox hide; cowhide; leather癣 癬 xuǎn noun ringworm A general term for skin diseases caused by fungal infections, such as ringworm, tinea, or mange; the affected area is often itchy with white scaly skin.