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+ | <onlyinclude>In optics, a [[wikipedia:prism|prism]] is a transparent optical element with flat, polished surfaces that refract light. The traditional geometrical shape is that of a [[wikipedia:triangular prism|triangular prism]] with a triangular base and rectangular sides, and in colloquial use "prism" usually refers to this type.</onlyinclude> |
[[Category:Etymology]] |
[[Category:Etymology]] |
Revision as of 23:58, 15 April 2017
In optics, a prism is a transparent optical element with flat, polished surfaces that refract light. The traditional geometrical shape is that of a triangular prism with a triangular base and rectangular sides, and in colloquial use "prism" usually refers to this type.