trisoctahedron

American  

[tris-ok-tuh-hee-druhn] / trɪsˌɒk təˈhi drən /

noun

plural

trisoctahedrons, trisoctahedra

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

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trisoctahedron British  

/ trɪsˌɒktəˈhiːdrən /

noun

1. a solid figure having 24 identical triangular faces, groups of three faces being formed on an underlying octahedron

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Other Word Forms

• trisoctahedral
  adjective

Etymology

Origin of trisoctahedron

1840–50; < Greek trís “thrice” + octahedron ( def. )