fingermark
/ˈfɪŋgəmɑːk/noun
1- a mark left on a surface by a dirty or greasy finger（留在表面上的脏的或油污的）指迹, 指痕。
1.1
- a mark left on a person's skin by a finger as a result of an act of violence（暴力行为所致的皮肤上的）指痕。