scurf
/skɜːf/noun
mass noun
1- flakes on the surface of the skin that form as fresh skin develops below, occurring especially as dandruff皮屑（尤指头皮屑）。
1.1
- a similar flaky deposit on any surface, especially one on a plant resulting from a fungal infection（物体表面的, 尤指受真菌感染的植物上的）屑状沉积物。
派生词
scurfy
adjective词源
late Old English sceorf, from the base of sceorfan 'gnaw'， sceorfian 'cut to shreds'.