Dodecahedron

//ˌdoʊ.dɛk.əˈhiː.dɹən// noun

noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    A polyhedron with twelve faces; the regular dodecahedron has regular pentagons as faces and is one of the Platonic solids.

    "1707, Thomas Blount, Glossographia Anglicana Nova: Or, A Dictionary, Interpreting Such Hard Words, D. Brown, heading DO–DO, Dodecahedron, (Gr.) in Geometry, is a solid Figure of 12 Sides or Faces that are regular Pentagons, it is one of the Platonick or Regular Bodies."

  2. 2
    any polyhedron having twelve plane faces wordnet

Synonyms

All synonyms
duodecahedronfiguretriangle

Example

More examples

"1707, Thomas Blount, Glossographia Anglicana Nova: Or, A Dictionary, Interpreting Such Hard Words, D. Brown, heading DO–DO, Dodecahedron, (Gr.) in Geometry, is a solid Figure of 12 Sides or Faces that are regular Pentagons, it is one of the Platonick or Regular Bodies."

Etymology

From Ancient Greek δωδεκάεδρον (dōdekáedron). Equivalent to dodeca- + -hedron.

Related phrases

Roman dodecahedrondyakis dodecahedrongreat dodecahedronhyperbolic dodecahedronpentakis dodecahedronrhombic dodecahedronsnub dodecahedrontruncated dodecahedrongreat dodecahedronplatonic solid

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.