scab
noun uk/skæb/ us/skæb/
(SKIN COVERING)
[ C ]（伤口上结的）痂
a rough surface made of dried blood that forms over a cut or broken skin while it is healing
Compare: scar noun
[ U ]（动物）疥疮，疥癣;（植物）疮痂病，斑点病
a plant or animal disease that causes rough areas on the skin
(WORKER)
[ C ] informal disapproving不参加罢工者，工贼
an insulting word for a person who continues working while other people in the organization are on strike
scab
verb
[ I ] (also scab over)长疥疮，长疥癣;被疥疮覆盖，被疥癣覆盖
to form a scab or become covered by a scab
The wound has scabbed over. 伤口上长了疥疮。