Wordia - The Definition Of Colour
colour
noun, a) an attribute of things that results from the light they reflect, transmit, or emit in so far as this light causes a visual sensation that depends on its wavelengths b) the aspect of visual perception by which an observer recognizes this attribute c) the quality of the light producing this aspect of visual perception d) (as modifier)
From Collins
©HarperCollins 2008. Collins English Dictionary definition of colour