臀胝 túnzhī ischial callosities Origin Definitions Defs Strokes Stroke Words Sentences Sents 臀 tún buttocks (bound form) buttocks; hips; rump; not to be pronounced as diàn; commonly referred to as 屁股 pìgu胝 zhī callus (bound form) a callus; thickened skin on the hands or feet, usually appearing in the compound 胼胝 piánzhī