Definition of "colouring" []

• Alternative spelling of coloring. (noun)
• Present participle of colour. (verb)
• Alternative spelling of coloring. (verb)

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• "Do you think that extra water would have to be added to account for the liquid missing if the food colouring is omitted?"
• "The unusual colouring is normally seen on growing cubs before the fox develops its dark chestnut coat, however some red foxes remain black due to a rare genetic flaw, which dates back hundreds of years."
• "Except that I am convinced that you would find subtle differences in colouring if you compared that picture of "Humphrey" with earlier ones of him."