Definitions for dodecahedron
doʊˌdɛk əˈhi drən, ˌdoʊ dɛk-do·dec·a·he·dron

Princeton's WordNetRate this definition:0.0 / 0 votes

1. dodecahedronnoun

   any polyhedron having twelve plane faces

WiktionaryRate this definition:0.0 / 0 votes

1. dodecahedronnoun

   A polyhedron with twelve faces; the regular dodecahedron has regular pentagons as faces and is one of the Platonic solids.

2. Etymology: From δωδεκάεδρον.

WikipediaRate this definition:0.0 / 0 votes

1. Dodecahedron

   In geometry, a dodecahedron (Greek δωδεκάεδρον, from δώδεκα dōdeka "twelve" + ἕδρα hédra "base", "seat" or "face") or duodecahedron is any polyhedron with twelve flat faces. The most familiar dodecahedron is the regular dodecahedron with regular pentagons as faces, which is a Platonic solid. There are also three regular star dodecahedra, which are constructed as stellations of the convex form. All of these have icosahedral symmetry, order 120. Some dodecahedra have the same combinatorial structure as the regular dodecahedron (in terms of the graph formed by its vertices and edges), but their pentagonal faces are not regular: The pyritohedron, a common crystal form in pyrite, has pyritohedral symmetry, while the tetartoid has tetrahedral symmetry. The rhombic dodecahedron can be seen as a limiting case of the pyritohedron, and it has octahedral symmetry. The elongated dodecahedron and trapezo-rhombic dodecahedron variations, along with the rhombic dodecahedra, are space-filling. There are numerous other dodecahedra. While the regular dodecahedron shares many features with other Platonic solids, one unique property of it is that one can start at a corner of the surface and draw an infinite number of straight lines across the figure that return to the original point without crossing over any other corner.

ChatGPTRate this definition:0.0 / 0 votes

1. dodecahedron

   A dodecahedron is a three-dimensional geometric shape that is made up of twelve flat faces. Usually, when referred to simply as a dodecahedron, it implies a regular dodecahedron which has twelve regular pentagonal faces, with three meeting at each vertex. It is one of the five Platonic solids.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Dodecahedronnoun

   a solid having twelve faces

2. Etymology: [Gr. ; twelve + seat, bottom, base: cf. F. dodcadre.]

WikidataRate this definition:0.0 / 0 votes

1. Dodecahedron

   In geometry, a dodecahedron is any polyhedron with twelve flat faces, but usually a regular dodecahedron is meant: a Platonic solid. It is composed of 12 regular pentagonal faces, with three meeting at each vertex, and is represented by the Schläfli symbol {5,3}. It has 20 vertices, 30 edges and 160 diagonals. Its dual polyhedron is the icosahedron, with Schläfli symbol {3,5}. A large number of other polyhedra also have twelve faces, most notably the topologically identical pyritohedron with tetrahedral symmetry, and the rhombic dodecahedron with octahedral symmetry.

Matched Categories

1. • Polyhedron

How to pronounce dodecahedron?

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Numerology

1. Chaldean Numerology

   The numerical value of dodecahedron in Chaldean Numerology is: 7

2. Pythagorean Numerology

   The numerical value of dodecahedron in Pythagorean Numerology is: 6

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=dodecahedron
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Dodecahedron
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Dodecahedron
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/dodecahedron
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=dodecahedron