discolouration
Noun
Meaning
the act of changing the natural color of something by making it duller or dingier or unnatural or faded
a soiled or discolored appearance
Source: WordNetSynonyms
Antonyms
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Examples
the wine left a dark stain
As with any water repair, once water service is restored it is important to run your cold water tap until the water runs clear, if you find any discolouration.
Charig et al. reported a discolouration: a dark band between two layers of limestone – they say it is the product of sedimentation.
Then to get rid of any discolouration and uneven skin tone, Bushra uses NAKED’s Peach Colour Correcting Fluid.
Cyanotic heart diseases are marked by varying degrees of cyanosis, which is a bluish discolouration of lips and nail beds.
Cis van Vuure (2005) says that, although the colour is present in a variety of primitive cattle breeds, it is probably a discolouration that appeared after domestication.