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Discoloration [ Botany ]
Synonym: Stain
Adjective: Discoloured
Noun: Discolourment

Dictionary of botanic terminology - index of names

  1. Any atypical colouring in plant or animal tissues visible to the naked eye.
  2. The act or condition of being discoloured.
In botany a discoloration is a changing from the original colour of  leaves, flowers, stems or other plants parts either due to environmental or internal factors including weather (overheating, light exposure, frost, etc.) disease, water stress, insect damage, lack of nutrients and chemical attack.
The discoloration is the change from an initial colour possessed by a plant surface which involves either lightening or darkening and/or change in hue. A lack of uniformity in pigmentation where pigmentation (colour) should be uniform over the whole area of an organ.

Compare with: Depigmentation

To discolour Transitive and intransitive verb:
Past and past participle discoloured, present participle discolouring, 3rd person present singular discolours)
  To change from an original or desired colour and take on an unpleasant, faded, darkened, or dirty appearance, or make something change in this way.  
[From Latin "discolorare" = to discolour (Derived from Latin "colorare" = to colour)]




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