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discolour

British  
/ dɪsˈkʌlə /

verb

  1. to change or cause to change in colour; fade or stain

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • discoloration noun
  • discolourment noun

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

When this occurs, blue-green algae can form blooms that discolour the water, or produce floating mats or scums on the water's surface.

From BBC • Sep. 9, 2025

When this occurs, the algae can form blooms that discolour the water or produce floating mats or scums on the water’s surface.

From BBC • Sep. 13, 2024

Do not cook for too long after adding the spinach paste as it will discolour and render the dish unappetising in appearance.

From The Guardian • Apr. 27, 2016

Frost, wind, rain and drought can discolour and blemish produce but there is no loss of nutrients.

From The Guardian • Sep. 27, 2012

In the hospitals, the students of medicine are requested, by notices upon the wall, to eject their tobacco juice into the boxes provided for that purpose, and not to discolour the stairs.

From American Notes by Dickens, Charles