(~s)
1.
A ~ is a toy in the shape of a tube with a small hole at one end. If you look through the hole and turn the other end of the tube, you can see a pattern of colours which changes as you turn the tube round.
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2.
You can describe something that is made up of a lot of different and frequently changing colours or elements as a ~.
...the vivid ~ of colours displayed in the plumage of the peacock.
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