Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A polyhedron with 12 faces.
Century Dictionary and Cyclopedia
- n. In geometry, a solid having twelve faces. Also duodecahedron.
Wiktionary
- n. A polyhedron with twelve faces; the regular dodecahedron has regular pentagons as faces and is one of the Platonic solids.
GNU Webster's 1913
- n. A solid having twelve faces.
WordNet 3.0
- n. any polyhedron having twelve plane faces
Etymologies
- Greek dōdekaedron : dōdeka, twelve; see dodecagon + -edron, -hedron.
Examples
“A dodecahedron is any polyhedron with twelve faces, but usually a regular dodecahedron is meant: a Platonic solid composed of twelve regular pentagonal faces, with three meeting at each vertex.”
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“The hyperbolic dodecahedron is quite symmetric and has the same symmetry group as a regular dodecahedron.”
“To the ancient Greeks, the dodecahedron was a symbol of the Universe.”
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“The most likely explanation is that the dodecahedron was a cult object for the Pythagoreans (dodecahedra in stone and bronze have been found dating back to prehistoric times) and that it was because of these religious connections that Hippasus 'public work on the mathematical aspects of the solid was seen as impious (Burkert 1972a, 460).”
“Plato would certainly have found the structure of C60 - an expanded dodecahedron, which is about as close to a sphere as you can get - to be an unusually beautiful body.”
“Place: -- the temporal mood of the Oversoul, playing through that particular facet of the dodecahedron, which is Greece.”
“Maybe I was wrong to tell "dodecahedron" that the leftie troll spots were taken.”
“There was a dodecahedron floating in front of me, in every direction.”
Fictionaut: Twenty-three-year-olds shouldn't be writing memoirs (Ch 3)
“I had seen a set of models of the regular polyhedra in my High School trig class, and decided that a “12-sided teetotum” must be the 12-sdied thingy (a regular dodecahedron) I had seen in the set.”
“If one were to make every one of the Platonic solids with edges of the same length, the dodecahedron would be the largest-wiki”
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Lists
These user-created lists contain the word ‘dodecahedron’.
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Hedrons
icosidodecahedron, dodecahedron, icosahedron, large hedron coll..., tippy hedron, cubicuboctahedron, great inverted sn..., rhombihexahedron, hosohedron, infinite skew pol..., permutohedron, strombic hexecont... and 12 more...
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twelfth
words and concepts reflective of their twelveness
twelfthtide, well-tempered, twelve noon, twelvemo, duodecimo, twelvescore, twelvepence, twelfth-second, twelfth-night, twelfth-tide, twelfthly, twelfth man and 38 more...
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Words that should be heard in songs more often
Inspired by PossibleUnderscore's list of words overused in modern pop music.
giant squid, bamboo, colonic, herbivore, raptor, dodecahedron, largesse, sinuses, dim sum, carburetor, transubstantiation, wife and 54 more...
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Fun To Say & Use
Words that I may or may not use comfortably, but enjoy using and I like the sound of the word.
verisimilitude, unequivocal, ampersand, moxie-berry, drubbing, dodecahedron, piteous, charisma
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duodec-, duodecim-, duoden-
twelve
duodecuple, duodecimfid, duodenary, duodenum, dodecahedron, dodecagon
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redunk's list
A list worth fighting for.
porpoise, pterodactyl, apatosaurus, jiminy, dodecahedron, messianic, elbow, animals
bilby Don't jump to Conclusions! Nov 19, 2008
mollusque Yes, there are references to it at octopus, inner thesaurus and hippopotamonomatopoeia. But no one has made a Tollboth list yet . . . Nov 19, 2008
obikitty Has anyone here read 'The Phantom Tollbooth'? The dodecahedron was one of my favorite characters when I read it as a kid. Nov 18, 2008
milosrdenstvi It is often referred to by lower forms of life as a 'D12'. Aug 15, 2008
chained_bear Constructing? Just saying this is teh alsome! Aug 15, 2008
milosrdenstvi Constructing these is just totally awesome. I demonstrated it out of Euclid last year; basically you just mark off golden sections on a cube, raise equal lines perpendicularly, and connect the dots. I even made a model. Aug 15, 2008