discoloration
noun
[ ˌdɪskʌləˈreɪʃn ]
• the process of becoming discoloured, or the state of being discoloured.
• "teeth with amalgam fillings may run the risk of discoloration"
Similar:
stain,
mark,
patch,
soiling,
streak,
spot,
blotch,
tarnishing,
blemish,
flaw,
defect,
disfigurement,
bruise,
contusion,
birthmark,
liver spot,
age spot,
splodge,
splotch,
ecchymosis,
naevus,
