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photochromic |
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photochromic [ˌfəʊtəʊˈkrəʊmɪk] adj (Physics / General Physics) (of glass) changing colour with the intensity of incident light, used, for example, in sunglasses that darken as the sunlight becomes brighter How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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