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.

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

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tris·oc′ta·he′dral (-drəl) adj.

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

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.