皮脂 pízhī sebum Origin Definitions Defs Strokes Stroke Words Sentences Sents 皮 pí noun skin; leather skin, fur, or hide of humans or animals; leather; peel or bark of plants脂 zhī adjective fat (bound form) animal fat; grease; oily or fatty substances from plants and animals, such as 脂肪 zhīfáng or 松脂 sōngzhī