tetartohedral

[ti-tahr-toh-hee-druh l]

adjective

(of a crystal) having one fourth the planes or faces required by the maximum symmetry of the system to which it belongs.

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 of tetartohedral

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

British Dictionary definitions for tetartohedral

tetartohedral

adjective

(of a crystal) having one quarter of the number of faces necessary for the full symmetry of its crystal system

Derived Formstetartohedrally, adverbtetartohedralism or tetartohedrism, noun

Word Origin for tetartohedral

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