Definition
discolouration
noun
- a change in color, especially an unwanted darkening or staining of a surface
Usage: British spelling; American spelling is 'discoloration'; commonly used in medical, dental, and material contexts
Examples
- The coffee stain caused permanent discolouration on the white tablecloth.
- Tooth discolouration can result from smoking or drinking red wine.
- The old painting showed significant discolouration from years of exposure to sunlight.
- Rust caused discolouration on the metal gate.
- The dermatologist examined the skin discolouration on the patient's arm.
- Water damage led to discolouration of the ceiling.
- Regular cleaning can help prevent discolouration of bathroom tiles.