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polyhedral

[pol-ee-hee-druh l] /ˌpɒl iˈhi drəl/
adjective
1.
of, pertaining to, or having the shape of a polyhedron.
Origin
1805-1815
1805-15; < Greek polýedr(os) many-based (see polyhedron) + -al1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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polyhedral in Science
polyhedron
  (pŏl'ē-hē'drən)   
Plural polyhedrons or polyhedra
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.

polyhedral adjective
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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