blister
This term describes a localized separation of skin layers or surface coatings, creating a fluid-filled pocket. It carries a strong connotation of irritation, damage, and physical discomfort, often associated with friction or thermal trauma.
When applied to non-biological surfaces like paint or varnish, the word shifts from a medical context to a structural failure. In these cases, it implies a loss of adhesion and a degradation of the protective layer due to environmental stress.
Meanings
A small bubble on the skin filled with serum, caused by friction, burning, or other irritation.
He got a blister on his heel from the new shoes.
A bubble or bubble-like swelling on the surface of a painted or coated material, caused by heat or moisture.
The heat caused the paint on the wall to blister.
Phrasal Verbs
blister up
to develop bubbles on a surface or skin due to heat or friction
The paint on the old fence started to blister up after the heatwave.