pyrito-

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• pyritohedron — drən sometimes ˌdrän noun (plural pyritohedrons or pyritohedra) Etymology: New Latin, from pyrito (from International Scientific Vocabulary …   Useful english dictionary

• pyritohedron — pyritohedral, adj. /puy ruy teuh hee dreuhn, peuh , puy ruy /, n. Crystall. a crystal form of 12 pentagonal faces. Also called pentagonal dodecahedron. See diag. under dodecahedron. [1865 70; pyrito (comb. form of PYRITE) + HEDRON] * * * …   Universalium