from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The dual polyhedron of a regular n-sided antiprism.
from the GNU version of the Collaborative International Dictionary of English
- n. A solid bounded by twelve quadrilateral faces. It is a hemihedral form of the isometric system, allied to the tetrahedron.
from The Century Dictionary and Cyclopedia
- n. In crystallography, a hemihedral isometric solid bounded by twelve faces, each a quadrilateral. The corresponding holohedral form is a trigonal trisoctahedron.
Sorry, no etymologies found.