fleece1 /fliːs/ noun 1. HBATA[countableC] the woolly coat of a sheep, especially the wool and skin of a sheep when it has been made into a piece of clothing 〔尤指连毛带皮做成衣服的〕羊毛 3. [countableC] British EnglishBrE a jacket made of this artificial material 绒头织物短上衣