truncated dodecahedron

plural truncated dodecahedra · plural truncated dodecahedrons

1. geometryAn Archimedean solid with thirty-two regular faces (twelve decagons and twenty triangles) and ninety edges.

   Void shapes were found to be generally truncated dodecahedra with {011} faces and {001} truncations.

   1990, David S. Gelles, “Neutron Irradiation Damage in Ferritic Fe-Cr Alloys”, in Nicholas H. Packan, R. E. Stoller, A. S. Kumar, editors, Effects of Radiation on Materials: 14th International Symposium, Volume 1, page 90

   3 more examples

   1813, Spinell, entry in John Mason Good, Olinthus Gregory, Newton Bosworth (editors), Pantologia: A New Cyclopaedia, Volume XI: SPA — TZE, unnumbered page, This, which may be regarded as a brown garnet or schoerl in truncated dodecahedrons of Rome de Lisle, was originally found in the island of Ceylon, among tourmalines and other crystalline substances, with which it was confounded.

   The morphologies commonly observed in bcc materials include truncated dodecahedrons with {110} faces and {100} truncations and cubes with {100} faces.

   1983, Electron Microscopy Society of America, Proceedings: 41st Annual Meeting, page 232

   1996, T. A. Fournelle, K. W. Weston, Generalizations of Steinberg Groups, World Scientific Publishing, Series in Algebra, Volume 4, page 176, The edges of the linkages lie on the edges of a truncated dodecahedron. Note that the group of orientation preserving symmetries of a truncated dodecahedron is precisely A₅.