pyritohedron

[ pahy-rahy-tuh-hee-druhn, puh-, pahy-rahy- ]

nounCrystallography.
  1. a crystal form of 12 pentagonal faces.

Origin of pyritohedron

1
1865–70; pyrito- (combining form of pyrite) + -hedron

Other words from pyritohedron

  • py·ri·to·he·dral, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024