icositetrahedron

American

[ahy-koh-si-te-truh-hee-druhn, ahy-kos-uh-] / aɪˌkoʊ sɪˌtɛ trəˈhi drən, aɪˌkɒs ə- /

noun

plural

icositetrahedrons, icositetrahedra

a solid figure having 24 faces.

icositetrahedron British

/ ˌaɪkəsɪˌtɛtrəˈhiːdrən /

noun

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of icositetrahedron

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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 Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" by Various

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

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" by Various

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023