[pol-ee-hee-druh l]


of, relating to, or having the shape of a polyhedron.

Nearby words

  1. polygraph,
  2. polygynist,
  3. polygynous,
  4. polygyny,
  5. polygyria,
  6. polyhedral angle,
  7. polyhedron,
  8. polyhedrosis,
  9. polyhidrosis,
  10. polyhistor

Origin of polyhedral

1805–15; < Greek polýedr(os) many-based (see polyhedron) + -al1

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for polyhedral

Word Origin and History for polyhedral



1741, from polyhedron + -al (1).

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for polyhedral



Plural polyhedrons 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.
Related formspolyhedral adjective

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