icositetrahedron

[ ahy-koh-si-te-truh-hee-druhn, ahy-kos-uh- ]

noun

, plural i·co·si·tet·ra·he·drons, i·co·si·tet·ra·he·dra [ahy-koh-si-te-tr, uh, -, hee, -dr, uh, ahy-kos-, uh, -].

1. a solid figure having 24 faces.

icositetrahedron

/ ˌaɪkəsɪˌtɛtrəˈhiːdrən /

noun

1. a solid figure having 24 trapezoid faces, as occurring in some crystals

Word History and Origins

Origin of icositetrahedron¹

1825–35; < Greek eikosi- (combining form of eíkosi twenty) + tetrahedron

Example Sentences

The resulting protein assembly has the shape of a pentagonal icositetrahedron, which is the dual of the snub cube.

From Nature

Here the cube, octahedron, rhombic dodecahedron, triakis-octahedron and icositetrahedron are geometrically the same as in the first class.

From Project Gutenberg

Faces of a pentagonal icositetrahedron with high indices have been very rarely observed on crystals of cuprite, potassium chloride and ammonium chloride, but none of these are circular polarizing.

From Project Gutenberg