discolouration

1. A soiled or discolored appearance (synset 104702524)
   "the wine left a dark stain"
   is a type of: appearance, visual aspect - outward or visible aspect of a person or thing
   subtypes:

   • scorch - a discoloration caused by heat
   • bloodstain - a discoloration caused by blood
   • iron mold, iron mould - a spot caused the staining with rust or ink
   • mud stain - a stain produced by mud
   • oil stain - a stain produced by oil
   • tarnish - discoloration of metal surface caused by oxidation
   same as: discoloration, stain
2. The act of changing the natural color of something by making it duller or dingier or unnatural or faded (synset 100275551)
   is a type of: change of color - an act that changes the light that something reflects
   same as: discoloration

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