exfoliation

详细解释:n. 剥落, 剥落物
【医】 表皮脱落, 鳞片样脱皮, 表皮剥脱

英语解释：

名词 exfoliation:

the peeling off in flakes or scales of bark or dead skina thin flake of dead epidermis shed from the surface of the skin同义词：scale, scurf