乳脂 rǔzhī butterfat Origin Definitions Defs Strokes Stroke Words Sentences Sents 乳 rǔ nounverb milk (bound form) milk; a milk-like liquid or emulsion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