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As in alphabetical and numerical.Objects in colourbetical order are put in order of their colour, often by tone or similarities with other colours in the selection. These are often in a line or group and should give off a similar effect to the colours of the rainbow when fully arranged. Colourbetical order is generally applied to rows of colouring crayons or pens, fabrics or sheets of paper in shops to make them more appealing.
Girl 1: 'Excuse me, can you put that orange pen back in colourbetical order please?'

Girl 2: 'What?'

Girl1: 'It was between the red and the yellow before and you put it between the purple and blue. It doesn't look right'.

Girl 2: 'Oh. Ok.'
by TheOneWhoCanBeNamed June 24, 2013
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