trisoctahedron

trisoctahedron

tris·oc·ta·he·dron

 (trĭs-ŏk′tə-hē′drən)

n. pl. tris·oc·ta·he·drons or tris·oc·ta·he·dra (-drə)

A solid figure having 24 equal faces, every three of which correspond to one face of an octahedron.

---

[Greek tris, thrice; see trei- in Indo-European roots + octahedron.]

---

tris·oc′ta·he′dral (-drəl) adj.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

trisoctahedron

(trɪsˌɒktəˈhiːdrən)

n, pl -drons or -dra (-drə)

(Mathematics) a solid figure having 24 identical triangular faces, groups of three faces being formed on an underlying octahedron

[C19: from Greek tris three times + octahedron]

trisˌoctaˈhedral adj

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

tris•oc•ta•he•dron

(trɪsˌɒk təˈhi drən)

n., pl. -drons, -dra (-drə).

a solid bounded by 24 identical faces in groups of three, each group corresponding to one face of an octahedron.

[1840–50; < Greek trís thrice + octahedron]

tris•oc`ta•he′dral, adj.

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.