### Polyhedron

A spheroidal particle or crystal with many plane faces.

A three dimensional figure composed of specific shapes.

Found on http://www.encyclo.co.uk/local/22291

Cubes, pyramids and some toroids are examples of polyhedra. A polyhedron is said to be convex if its surface (comprising its faces, edges and vertices) does not intersect itself and the line segment joining any two points of the polyhedron is contained in the interior or surface. A polyhedron is a 3-dimensional example of the more general polytope...

Found on http://en.wikipedia.org/wiki/Polyhedron

(from the article `chemical compound`) ...compounds do not. These compounds link the mononuclear complexes ( = 1) with the nonmolecular ( ) binary and ternary metallic compounds. Of the ... ...isomorphic if . Euler was the first to investigate in 1752 the analogous question concerning polyhedra. He found that + = 2 for every conv...

Found on http://www.britannica.com/eb/a-z/p/90

[

*n]* - a solid figure bounded by plane polygons or faces

Found on http://www.webdictionary.co.uk/definition.php?query=polyhedron

• (n.) A polyscope, or multiplying glass. • (n.) A body or solid contained by many sides or planes.

Found on http://thinkexist.com/dictionary/meaning/polyhedron/

*noun* a solid figure bounded by plane polygons or faces

Found on https://www.encyclo.co.uk/local/20974

*[magazine]* Polyhedron was a magazine targeting consumers of role-playing games, and originally the official publication of the RPGA (Role Playing Gamers Association). ==1981 to 2002== Publication of the Role Playing Gamers Association magazine began in the year 1981, and the target audience was players of the Dungeons & Dragons roleplaying ...

Found on http://en.wikipedia.org/wiki/Polyhedron_(magazine)

**Pol`y·he'dron** * noun* ;

* plural* English

** Polyhedrons** . , Latin

** Polyhedra** . [ New Latin , from Greek ... with many seats or sides;

poly`s many + ... a seat or side: confer French

* polyèdre* .]

** 1.** * (Geom.)* A body or solid contained by many sides or planes....

Found on http://www.encyclo.co.uk/webster/P/122

A solid figure with flat faces that are polygons

Examples:

Found on http://www.hbschool.com/glossary/math2/index6.html

A three-dimensional object whose faces are all polygons and whose edges are shared by exactly two polygons. 'Polyhedron' comes from the Greek poly for 'many' and -hedron meaning 'base,' 'seat,' or 'face.' Every polyhedron in three-dimensional space consists of (two-dimensional) faces, (one-dimension...

Found on http://www.daviddarling.info/encyclopedia/P/polyhedron.html

In geometry, a solid figure with four or more plane faces. The more faces there are on a polyhedron, the more closely it approximates to a sphere. Knowledge of the properties of polyhedra is needed in crystallography and stereochemistry to determine the shapes of crystals and molecules. There are onl...

Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0006717.html

polyhedron (pol"ēhē'drun) , closed solid bounded by plane faces; each face of a polyhedron is a polygon. A cube is a polyhedron bounded by six polygons (in this case squares) meeting at right angles. Although regular polygons are possible for any number of sides, there are only f...

Found on http://www.infoplease.com/ce6/sci/A0839590.html

polyhedron, polyhedral Having many faces or sides. Related topics utilizing this poly- prefix: Polysemy and Polysemous and Polygamy Sections.

Found on http://www.wordinfo.info/words/index/info/view_unit/2804/7

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