trisoctahedron

noun
tris·oc·ta·he·dron | \ˌtri-ˌsäk-tə-ˈhē-drən \

Definition of trisoctahedron 

: a solid (such as a crystal) having 24 congruent faces meeting on the edges of a regular octahedron

First Known Use of trisoctahedron

circa 1847, in the meaning defined above

History and Etymology for trisoctahedron

Greek tris thrice + English octahedron — more at ter-

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The first known use of trisoctahedron was circa 1847

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one that holds something together

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