discolouration

Everyday

1. A change in the usual colour of something, often to a worse colour. tree →
2. A spot or patch where the colour has changed, like a stain or a mark. tree →

In the lessons

In UK, Irish, Australian and NZ writing, the same word as «discoloration»; used for stains on teeth, walls, fabric and leaves; often a sign of damage, mould or illness; phrases: «discolouration of the water», «slight discolouration».

Examples

• There was a slight discolouration on the old photo. tree →
• The water came out with a brown discolouration. tree →
• Tea can cause discolouration of the teeth. tree →
• Damp left a grey discolouration on the wall. tree →
• The doctor looked at the discolouration on her skin. tree →
• Yellow discolouration on leaves can mean too much water. tree →
• Bleach caused discolouration on my jeans. tree →

Note

UK spelling with «ou»; US spelling «discoloration». Same meaning. Verb: discolour; adjective: discoloured.