Dictionary.com
Thesaurus.com
Showing results for pyritohedron. Search instead for Pyritohedral.

pyritohedron

American  
[pahy-rahy-tuh-hee-druhn, puh-, pahy-rahy-] / paɪˌraɪ təˈhi drən, pə-, ˌpaɪ raɪ- /

noun

Crystallography.

  1. a crystal form of 12 pentagonal faces.

Other Word Forms

  • pyritohedral adjective

Etymology

Origin of pyritohedron

1865–70; pyrito- (combining form of pyrite ) + -hedron

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

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.