rash² n 1 [C] a lot of small red spots on someone's skin 皮疹: The rash covered the baby's entire body. 皮疹布满了婴儿的全身。 2 a rash ofinformal a lot of unpleasant things that suddenly start happening 【非正式】 一大堆〔令人不快的突发事件〕: There has been a rash of unofficial strikes in the past few months. 在过去几个月里爆发了一连串非正式的罢工事件。