Definition of dodecahedron in English:
dodecahedron
nounPlural dodecahedra, Plural dodecahedrons ˌdəʊdɛkəˈhiːdr(ə)nˌdoʊˌdɛkəˈhidrən
A three-dimensional shape having twelve plane faces, in particular a regular solid figure with twelve equal pentagonal faces.
Example sentencesExamples
- As well as constructions to divide a line in the golden ratio, Euclid gives applications such as the construction of a regular pentagon, an icosahedron and a dodecahedron.
- The fifth regular polyhedron, the dodecahedron, was left over, so Plato proposed rather lamely that the god used it up for decorating the universe.
- Dali also incorporated in the painting a huge dodecahedron (a twelve-faced Platonic solid in which each side is a pentagon) engulfing the supper table.
- Finally, so as not to leave out the one remaining regular solid, he proposed that the dodecahedron represented the shape of the entire universe.
- There is a fifth Platonic regular solid too: the dodecahedron, which has pentagonal (five-sided) faces.
Derivatives
adjective
Fluorite from Dongshan occurs only as simple cubes consistently modified by small dodecahedral faces.
Example sentencesExamples
- They described a distorted 5.5 x 4-cm dodecahedral crystal of genthelvite from a small pegmatite near Stove Mountain.
- Grossular occurred as greenish-gray to pale brown semitransparent dodecahedral crystals to 8 mm and also as a granular material making up a high percentage of the skarn.
- Archaeologists have unearthed models of dodecahedra at several sites in Europe, including a dodecahedral model in Germany that had holes of different sizes puncturing its faces.
- Sphalerite is cubic with crystals commonly tetrahedral or dodecahedral and frequently complex and distorted.
Origin
Late 16th century: from Greek dōdekaedron, neuter (used as a noun) of dōdekaedros 'twelve-faced'.
Rhymes
decahedron, octahedron, polyhedron, tetrahedron
Definition of dodecahedron in US English:
dodecahedron
nounˌdoʊˌdɛkəˈhidrənˌdōˌdekəˈhēdrən
A three-dimensional shape having twelve plane faces, in particular a regular solid figure with twelve equal pentagonal faces.
Example sentencesExamples
- As well as constructions to divide a line in the golden ratio, Euclid gives applications such as the construction of a regular pentagon, an icosahedron and a dodecahedron.
- There is a fifth Platonic regular solid too: the dodecahedron, which has pentagonal (five-sided) faces.
- The fifth regular polyhedron, the dodecahedron, was left over, so Plato proposed rather lamely that the god used it up for decorating the universe.
- Finally, so as not to leave out the one remaining regular solid, he proposed that the dodecahedron represented the shape of the entire universe.
- Dali also incorporated in the painting a huge dodecahedron (a twelve-faced Platonic solid in which each side is a pentagon) engulfing the supper table.
Origin
Late 16th century: from Greek dōdekaedron, neuter (used as a noun) of dōdekaedros ‘twelve-faced’.