1. (尤指用于制作大衣或毛毯的)带毛的羊皮，羊毛皮革
Sheepskin is the skin of a sheep with the wool still attached to it, used especially for making coats and rugs.

1. a document certifying the successful completion of a course of study

Synonym: diploma

2. skin of a sheep or goat prepared for writing on

Synonym: parchmentlambskin

3. tanned skin of a sheep with the fleece left on
used for clothing

Synonym: fleece