Pyritohedron

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Pyritohedron \Pyr`i*to*he"dron\, n. [Pyrite + Gr. ? base.]
     (Crystallog.)
     The pentagonal dodecahedron, a common form of pyrite.
     [1913 Webster]