In geometry, a decahedron is a polyhedron with ten faces. There are 32300 topologically distinct decahedra and none is regular, so this name is ambiguous. With regular faces: With irregular faces it can also be: ... Found on http://en.wikipedia.org/wiki/Decahedron
Dec`a·he'dron noun ; plural English Decahedrons , Latin Decahedra . [ Prefix deca- + Greek 'e`dra a seat, a base, from 'e`zesthai to sit: confer French décaèdre .] (Geom.) A solid figure or body inclosed by ten plane surfaces. [ Writ... Found on http://www.encyclo.co.uk/webster/D/14