Definitions of discolouration
  1. noun
    a soiled or discolored appearance
    synonyms: discoloration, stain
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    a discoloration caused by heat
    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
    discoloration of metal surface caused by oxidation
    type of:
    appearance, visual aspect
    outward or visible aspect of a person or thing
  2. noun
    the act of changing the natural color of something by making it duller or dingier or unnatural or faded
    synonyms: discoloration
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    type of:
    change of color
    an act that changes the light that something reflects
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