tetartohedral

American

[ti-tahr-toh-hee-druhl] / tɪˌtɑr toʊˈhi drəl /

adjective

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

tetartohedral British

/ tɪˌtɑːtəʊˈhiːdrəl /

adjective

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

"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

Other Word Forms

tetartohedralism noun
tetartohedrally adverb
tetartohedrism noun

Etymology

Origin of tetartohedral

1855–60; < Greek tétarto ( s ) one fourth + -hedral

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.

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

From Project Gutenberg

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

From Project Gutenberg

Crystals belonging to many of the hemihedral and tetartohedral classes of the six systems of crystallization are devoid of a centre of symmetry.

From Project Gutenberg

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