# polyhedron

a solid figure having many faces.

## Origin of polyhedron

^{1}

## Words Nearby polyhedron

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

## How to use polyhedron in a sentence

If we make a

*polyhedron*out of clay, mark the edges with a Sharpie, and roll it into a ball, the faces and edges become curved but their number doesn’t change.Synacral, sin-ak′ral, adj. having a common vertex, as faces of a

*polyhedron*.Crime, he admitted, is a very complex phenomenon; it is a sort of

*polyhedron*, of which every one sees a special side.The Criminal | Havelock Ellis"

*polyhedron*" is from the Greek polys (many) and hedra (seat).The Teaching of Geometry | David Eugene SmithThe points thus obtained are evidently the vertices of a

*polyhedron*with plane faces.

In the first place, each of these figures may be conceived as an orthogonal projection of a closed plane-faced

*polyhedron*.

## British Dictionary definitions for polyhedron

/ (ˌpɒlɪˈhiːdrən) /

a solid figure consisting of four or more plane faces (all polygons), pairs of which meet along an edge, three or more edges meeting at a vertex. In a regular polyhedron all the faces are identical regular polygons making equal angles with each other. Specific polyhedrons are named according to the number of faces, such as tetrahedron, icosahedron, etc

## Origin of polyhedron

^{1}

## Derived forms of polyhedron

- polyhedral, adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

## Scientific definitions for polyhedron

[ pŏl′ē-hē′drən ]

A three-dimensional geometric figure whose sides are polygons. A tetrahedron, for example, is a polyhedron having four triangular sides.♦ A regular polyhedron is a polyhedron whose faces are all congruent regular polygons. The regular tetrahedron (pyramid), hexahedron (cube), octahedron, dodecahedron, and icosahedron are the five regular polyhedrons. Regular polyhedrons are a type of Archimedean solid.

## Other words from polyhedron

- polyhedral adjective

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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