Hello, you have come here looking for the meaning of the word enneahedron. In DICTIOUS you will not only get to know all the dictionary meanings for the word enneahedron, but we will also tell you about its etymology, its characteristics and you will know how to say enneahedron in singular and plural. Everything you need to know about the word enneahedron you have here. The definition of the word enneahedron will help you to be more precise and correct when speaking or writing your texts. Knowing the definition ofenneahedron, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.
English
An elongated triangular bipyramid, an example of an enneahedronA heptagonal prism, another enneahedron
The enneahedron is a simple all-space filler discovered by myself, based on the cubic antiprism, again omitted by Wood.
1996, Michael O'Keeffe, Bruce G. Hyde, Crystal Structures, Number 1: Patterns & Symmetry, page 350,
This is based on a packing of 36-vertex icosahedra and enneahedra (43.56].
2015, Claudi Alsina, Roger B. Nelsen, A Mathematical Space Odyssey: Solid Geometry in the 21st Century, page 191:
In Figure 9.10.3 we see a projection of the skeleton of an enneahedron (a solid with nine faces). All the faces of this enneahedron are quadrilaterals.
enneahedron on Wikipedia.Wikipedia 