- a solid figure having eight faces.
Origin of octahedron
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for octahedron
The Octahedron, having eight equilateral triangles as faces.Bygone Beliefs
H. Stanley Redgrove
Combinations of the cube and octahedron are shown in figs. 6-8.
It may be derived from the octahedron by suppressing the alternate faces.
The other piece of money in circulation was octahedron in shape or form.Memoirs of Orange Jacobs
A cube may be inscribed in an octahedron, its vertices being at the centers of the faces of the octahedron.The Teaching of Geometry
David Eugene Smith
- a solid figure having eight plane faces
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
Word Origin and History for octahedron
Online Etymology Dictionary, © 2010 Douglas Harper
- A polyhedron that has eight faces.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.