Piezochromism

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Piezochromism describes the tendency of certain materials to change color with the application of pressure. This effect is particularly pronounced in plastics.

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Chromism
 photochromism (light) | thermochromism (heat) | electrochromism (electricity) | solvatochromism (solvent) | ionochromism (ions) | halochromism (pH) | tribochromism (friction) | piezochromism (pressure)