English

edit
 
A dodecahedron

Etymology

edit

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

Pronunciation

edit
  • (UK) IPA(key): /ˌdəʊ.dɛk.əˈhiː.dɹən/, /ˌdəʊ.dɪk.əˈhiː.dɹən/
  • (US) IPA(key): /ˌdoʊ.dɛk.əˈhiː.dɹən/, /doʊˌdɛk.əˈhiː.dɹən/
  • Audio (US):(file)
  • Audio (General Australian):(file)
  • Audio (UK):(file)

Noun

edit

dodecahedron (plural dodecahedra or dodecahedrons)

  1. (geometry) 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.
    Synonym: duodecahedron

Derived terms

edit

Translations

edit

Further reading

edit