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Webster 1913 Edition

Pyritohedron

Pyrˊi-to-he′dron

,

Noun.

[

Pyrite

+ Gr. [GREEK] base.]

(Crystallog.)

The pentagonal dodecahedron, a common form of pyrite.

Definition 2024

pyritohedron

pyritohedron

English

Noun

pyritohedron ‎(plural pyritohedra)

(mathematics) an irregular dodecahedron, consisting of identical but irregular pentagons
the shape of a crystal of pyrite