blister

B2 · Upper Intermediate Countable noun Science Technical

n. A small bubble that forms on the surface of something, like paint or a wall, often because of heat or moisture.

n. A defect in a surface coating or material characterized by a raised bubble, often caused by the expansion of trapped air, moisture, or gas.

“The old paint started to form a blister after the long, hot summer.”

“Improper application of the sealant led to a visible blister in the protective coating of the aircraft wing.”

C1 · Advanced Countable noun FORMULA 1 Technical

n. A bubble that forms on a racing car tyre when the rubber gets too hot, which can make the car harder to drive.

n. A condition in motorsport where the internal temperature of a tyre carcass exceeds its limits, causing the rubber to delaminate and form a bubble on the tread surface.

“The driver had to slow down because a blister appeared on his front-left tyre.”

“The high track temperatures caused a significant blister on the rear tyres, forcing an early pit stop to avoid a blowout.”

B2 · Upper Intermediate Countable noun

n. A small bubble that rises to the top of a liquid when it is being heated or cooked.

n. A small pocket of air or steam that forms on the surface of a viscous liquid or dough during the heating process.

“Wait for a small blister to appear on the surface of the sauce before you turn down the heat.”

“The pastry developed a light blister during the baking process, indicating a perfectly aerated dough.”