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[tris-ok-tuh-hee-druh n] /trɪsˌɒk təˈhi drən/
noun, plural trisoctahedrons, trisoctahedra
[tris-ok-tuh-hee-druh] /trɪsˌɒk təˈhi drə/ (Show IPA)
a solid bounded by 24 identical faces in groups of three, each group corresponding to one face of an octahedron.
Origin of trisoctahedron
1840-50; < Greek trís thrice + octohedron
Related forms
trisoctahedral, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for trisoctahedron


noun (pl) -drons, -dra (-drə)
a solid figure having 24 identical triangular faces, groups of three faces being formed on an underlying octahedron
Derived Forms
trisoctahedral, adjective
Word Origin
C19: from Greek tris three times + octahedron
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
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