Zi Collection, Upper Volume, Page 12, Entry 05 Pronounced zhi (falling tone). Refers to peeled skin. Also, "Collected Rhymes" (Jiyun): Pronounced zhì (falling tone). Refers to animal fat. Originally written as 胓. "Collected Rhymes of the Five Tones" (Wuyin Jiyun): Refers to the fat of cattle and sheep. Annotation: "Guangya" (Boya): 胓, fat. Note: The two characters 胓 and 胓 are connected as a compound word. The original text has been corrected from 胓 to 胓.