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tetartohedral

[ti-tahr-toh-hee-druh l]
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adjective
  1. (of a crystal) having one fourth the planes or faces required by the maximum symmetry of the system to which it belongs.
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Origin of tetartohedral

1855–60; < Greek tétarto(s) one fourth + -hedral
Related formste·tar·to·he·dral·ly, adverbte·tar·to·he·drism, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for tetartohedral

Historical Examples

  • This is bounded by twelve irregular pentagons, and is a tetartohedral or quarter-faced form of the hexakis-octahedron.

    Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7

    Various

  • These systems, however, only represented holohedral forms, leaving the hemihedral and tetartohedral classes to be explained.

British Dictionary definitions for tetartohedral

tetartohedral

adjective
  1. (of a crystal) having one quarter of the number of faces necessary for the full symmetry of its crystal system
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Derived Formstetartohedrally, adverbtetartohedralism or tetartohedrism, noun

Word Origin

C19: from Greek tetartos one fourth + -hedral
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