octadecahedron

English

Etymology

From octadeca- +‎ -hedron.

Noun

octadecahedron (plural octadecahedra or octadecahedrons)

1. (geometry) A polyhedron with eighteen faces.
   • 1974, International Polymer Science and Technology, page 202:

     The cell structure was considered to consist of spherical holes but for the purposes of calculation, the cells were assumed to be octadecahedra. ln this model, a compressive force along the principal axis of the octadecahedron and parallel to.

   • 1986, Dick Alan Nagaki, page 20:

     In fact the structure of 2 can be related to the octadecahedron and the pentacapped trigonal prism in an interesting fashion

Synonyms

• octakaidecahedron

Related terms

• octadecahedral