noun · 2 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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UK:/ˌdəʊ.dɛk.əˈhiː.dɹən/
UK:/ˌdəʊ.dɪk.əˈhiː.dɹən/
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US:/ˌdoʊ.dɛk.əˈhiː.dɹən/
US:/doʊˌdɛk.əˈhiː.dɹən/
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Australia:Recorded audio is listed in the source snapshot.
1
noun
Meaning 1
A polyhedron with twelve faces; the regular dodecahedron has regular pentagons as faces and is one of the Platonic solids.
Definition source: English Wiktionary via Wiktextract
Topics: geometry, mathematics, sciences
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.
Meaning relationships
Synonyms: duodecahedron
Antonyms: none provided
2
noun
Meaning 2
any polyhedron having twelve plane faces
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: polyhedron
History
Etymology
From Ancient Greek δωδεκάεδρον (dōdekáedron). Equivalent to dodeca- + -hedron.
Across languages
Translations
54 source translations are retained for this English entry.
Armenian:
տասներկուանիստ
(tasnerkuanist)
— a polyhedron with 12 faces
Azerbaijani:
dodekaedr
— a polyhedron with 12 faces
Catalan:
dodecàedre
— a polyhedron with 12 faces
Catalan:
dodecaedre
— a polyhedron with 12 faces
Chinese Mandarin:
正十二面體 /正十二面体
(zhèngshí'èr miàntǐ)
— a polyhedron with 12 faces
Czech:
dvanáctistěn
— a polyhedron with 12 faces
Czech:
dodekaedr
— a polyhedron with 12 faces
Danish:
dodekaeder
— a polyhedron with 12 faces
Dutch:
twaalfvlak
— a polyhedron with 12 faces
Dutch:
dodecaëder
— a polyhedron with 12 faces
Esperanto:
dekduedro
— a polyhedron with 12 faces
Estonian:
korrapärane dodekaeeder
— a polyhedron with 12 faces
Finnish:
dodekaedri
— a polyhedron with 12 faces
Finnish:
kaksitoistatahokas
— a polyhedron with 12 faces
French:
dodécaèdre
— a polyhedron with 12 faces
Galician:
dodecaedro
— a polyhedron with 12 faces
German:
Dodekaeder
— a polyhedron with 12 faces
German:
Zwölfflächner
— a polyhedron with 12 faces
German:
12-Flächner
— a polyhedron with 12 faces
Haitian Creole:
dodekayèd
— a polyhedron with 12 faces
Hebrew:
תְּרֵיסָרוֹן
(t'resarón)
— a polyhedron with 12 faces
Hebrew:
דּוֹדֶקָהֶדְרוֹן
(dodekahédron)
— a polyhedron with 12 faces
Hungarian:
dodekaéder
— a polyhedron with 12 faces
Icelandic:
tólfflötungur
— a polyhedron with 12 faces
Ido:
dodekaedro
— a polyhedron with 12 faces
Indonesian:
dodekahedron
— a polyhedron with 12 faces
Indonesian:
bangun bersisi dua belas
— a polyhedron with 12 faces
Irish:
dóideacaihéadrán
— a polyhedron with 12 faces
Italian:
dodecaedro
— a polyhedron with 12 faces
Japanese:
正十二面体
(seijūni mentai)
— a polyhedron with 12 faces
Japanese:
十二面体
(jūnimentai)
— a polyhedron with 12 faces
Korean:
정십이면체
(jeongsibimyeonche)
— a polyhedron with 12 faces
Latvian:
dodekaedrs
— a polyhedron with 12 faces
Lithuanian:
dodekaedras
— a polyhedron with 12 faces
Malay:
segi dua puluh
— a polyhedron with 12 faces
Malay:
dodekahedron
— a polyhedron with 12 faces
Norwegian:
dodekaeder
— a polyhedron with 12 faces
Occitan:
dodécaèdre
— a polyhedron with 12 faces
Polish:
dwunastościan foremny
— a polyhedron with 12 faces
Portuguese:
dodecaedro
— a polyhedron with 12 faces
Quechua:
chunka iskayniyuq uya
— a polyhedron with 12 faces
Russian:
додека́эдр
(dodekáedr)
— a polyhedron with 12 faces
Russian:
двенадцатигранник
(dvenadcatigrannik)
— a polyhedron with 12 faces
Serbo-Croatian:
до̀декае̄дар
— a polyhedron with 12 faces
Serbo-Croatian:
dòdekaēdar
— a polyhedron with 12 faces
Spanish:
dodecaedro
— a polyhedron with 12 faces
Swedish:
dodekaeder
— a polyhedron with 12 faces
Tamil:
பன்னிரண்டுமுக ஐங்கோணகம்
(paṉṉiraṇṭumuka aiṅkōṇakam)
— a polyhedron with 12 faces
Thai:
ทรงสิบสองหน้า
(song sìp sŏng nâa)
— a polyhedron with 12 faces
Turkish:
dodekahedron
— a polyhedron with 12 faces
Ukrainian:
додека́едр
(dodekáedr)
— a polyhedron with 12 faces
Ukrainian:
дванадцятигра́нник
(dvanadcjatyhránnyk)
— a polyhedron with 12 faces
Vietnamese:
khối mười hai mặt
— a polyhedron with 12 faces