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prism

 
pronunciation:
prih zm
features:
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part of speech: noun
definition 1: a solid glass or crystal object that light can pass through. It has three sides that are rectangles and two ends shaped like triangles. A prism splits a ray of light into the colors of the rainbow.
definition 2: a solid figure that has parallel bases that are the same size and shape and faces that are parallelograms.
The shape of most boxes is a prism.
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  color, light