Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun discolouration

2 senses of discolouration

Sense 1
stain, discoloration, discolouration -- (a soiled or discolored appearance; "the wine left a dark stain")
       => appearance, visual aspect -- (outward or visible aspect of a person or thing)

Sense 2
discoloration, discolouration -- (the act of changing the natural color of something by making it duller or dingier or unnatural or faded)
       => change of color -- (an act that changes the light that something reflects)