icosahedron
/(ˌ)aɪˌkoʊsəˈhiːdɹən/
icosahedron noun: a polyhedron with twenty faces.
Noun
icosahedron (plural icosahedra or icosahedrons)
- A polyhedron with twenty faces.
- A regular icosahedron: one of the Platonic solids, all of whose faces are regular (equilateral) triangles
- Synonyms:
- regular gyroelongated pentagonal bipyramid
icosahedron meaning in Vietnamese
icosahedron in Vietnamese
- a polyhedron
- nhị thập diện
Synonyms of icosahedron
- regular gyroelongated pentagonal bipyramid
Forms of icosahedron
| plural | icosahedra |
|---|---|
| plural | icosahedrons |
| alternative form (obsolete) | eicosaedrum |
| alternative form (obsolete) | icosaedrum |
Origin of icosahedron
From Ancient Greek εἰκοσάεδρον (eikosáedron), from εἴκοσι (eíkosi, “twenty”) + ἕδρα (hédra, “face of a geometrical solid”). Equivalent to icosa- + -hedron.
Words formed from icosahedron
Questions about icosahedron
- What does icosahedron mean?
- Icosahedron means a polyhedron with twenty faces.
- What is icosahedron in Vietnamese?
- Icosahedron in Vietnamese is nhị thập diện. See Icosahedron meaning in Vietnamese.
- What part of speech is icosahedron?
- Icosahedron is a noun.
- How do you pronounce icosahedron?
- Icosahedron is pronounced /(ˌ)aɪˌkoʊsəˈhiːdɹən/.
- What is the plural of icosahedron?
- The plural of icosahedron is icosahedra.
Words near icosahedron in the dictionary
Source and license
Adapted from Wiktionary: icosahedron (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Pronunciation audio from Wikimedia Commons, each file under its own free license: En-us-icosahedron.oga.
Cite this entry: “icosahedron.” Word.ws, https://word.ws/icosahedron. Based on Wiktionary, CC BY-SA 4.0.