1. A soiled or discoloured appearance
   - stain, discolouration [Brit, Cdn] 
2. The act of changing the natural colour of something by making it duller or dingier or unnatural or faded
   - discolouration [Brit, Cdn]

Derived forms: discolorations

See also: discolor [US]

Type of: appearance, change of color [US], change of colour [Brit, Cdn], visual aspect

• photophobia
• photophore
• photopic
• photopic vision
• photopigment
• photoplate making
• photoreceptor
• photoretinitis
• photosensitise
• photosensitive
• photosensitivity
• photosensitize
• photoshop
• photosphere
• photospheric
• photostat
• Photostat machine
• photosynthesis
• photosynthesise
• photosynthesize
• photosynthetic
• phototaxis
• phototherapy
• phototrophic bacteria
• phototropic