In geometry, stellation is the process of extending a polygon (in two dimensions), polyhedron in three dimensions, or, in general, a polytope in n dimensions to form a new figure. Starting with an original figure, the process extends specific elements such as its edges or face planes, usually in a symmetrical way, until they meet each other again ...
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http://en.wikipedia.org/wiki/Stellation
• (n.) Radiation of light.
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http://thinkexist.com/dictionary/meaning/stellation/
Great icosahedron. Model and image courtesy Robert Webb 1. The process of constructing a new polyhedron by extending the face planes of a given polyhedron past their edges. 2. The new polyhedron thus obtained. Starting with the icosahedron, for example, there are 59 possible stellations, includ...
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http://www.daviddarling.info/encyclopedia/S/stellation.html
in mathematics a stellation is a form produced by extending the sides of a convex polyhedron until they intersect. In origami this term is often misused to mean any star-like form produced by adding pyramids to the faces of a convex polyhedron.
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Stel·la'tion noun Radiation of light. [ Obsolete]
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http://www.encyclo.co.uk/webster/S/192
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