blister

1. N-COUNT A blister is a painful swelling on the surface of your skin. Blisters contain a clear liquid and are usually caused by heat or by something repeatedly rubbing your skin. (皮肤上的) 水疱

2. V-T/V-I When your skin blisters or when something blisters it, blisters appear on it. 使起水疱; 起水疱

The affected skin turns red and may blister. 受感染的皮肤会变红，并可能起水疱。

The sap of this plant blisters the skin. 这种植物的汁液会使皮肤起水疱。