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opaque medium |
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opaque medium [ō′pāk ‚mēd·ē·əm] (optics) A medium impervious to rays of light, that is, not transparent to the human eye. (physics) A medium which does not transmit electromagnetic radiation of a specified type, such as that in the infrared, x-ray, ultraviolet, and microwave regions. A medium which prevents the passage of particles of a specified type. 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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