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Polyhedron - 6 dictionary results

pol⋅y⋅he⋅dron

[pol-ee-hee-druh

–noun, plural -drons, -dra [-druh]

a solid figure having many faces.

Origin:
1560–70; < Gk polýedron, neut. of polýedros having many bases. See poly-, -hedron

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
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pol·y·he·dron (pŏl'ē-hē'drən) Pronunciation Key
n. pl. pol·y·he·drons or pol·y·he·dra (-drə)
A solid bounded by polygons.
pol'y·he'dral adj.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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polyhedron

1570, from Gk. polyedron, neut. of adj. polyedros "having many bases or sides," from polys "many" (see poly-) + hedra "seat, base, chair, face of a geometric solid," from PIE base *sed- "to sit" (see sedentary).

Online Etymology Dictionary, © 2001 Douglas Harper
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polyhedron
noun
a solid figure bounded by plane polygons or faces

WordNet® 3.0, © 2006 by Princeton University.
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polyhedron (pŏl'ē-hē'drən) Pronunciation Key
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

Polyhedron

Pol`y*he"dron\, n.; pl. E. Polyhedrons., L. Polyhedra. [NL., fr. Gr. ? with many seats or sides; poly`s many + ? a seat or side: cf. F. poly[`e]dre.]

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

2. (Opt.) A polyscope, or multiplying glass.