Speakur

Word Pronunciation & Dictionary

icosahedron

/(ˌ)aɪˌkoʊsəˈhiːdɹən/

Word Rarity Very rare

Frequency: Zipf frequency 1.86 in modern English

Syllables
icosa-he-dron
IPA
/(ˌ)aɪˌkoʊsəˈhiːdɹən/
17
Scrabble Score
11
Letters
3
Syllables
10
Unique Chars

Meaning

noun

A polyhedron with twenty faces.

noun

A regular icosahedron: one of the Platonic solids, all of whose faces are regular (equilateral) triangles

Etymology

From Ancient Greek εἰκοσάεδρον (eikosáedron), from εἴκοσι (eíkosi, “twenty”) + ἕδρα (hédra, “face of a geometrical solid”). Equivalent to icosa- + -hedron.

Origin

Word Breakdown

Inflected Forms

icosahedra (plural) icosahedrons (plural) eicosaedrum (alternative, obsolete) icosaedrum (alternative, obsolete)

Derived Forms

icosahedronic supericosahedron

Phrases

great icosahedron hemi-icosahedron triakis icosahedron truncated icosahedron

Frequently Paired Words

icosahedral icosahedrite

Synonyms

regular gyroelongated pentagonal bipyramid

Questions

How do you pronounce icosahedron?
The recorded pronunciation is /(ˌ)aɪˌkoʊsəˈhiːdɹən/.
What does icosahedron mean?
A polyhedron with twenty faces.
Where does icosahedron come from?
It is traced to Ancient Greek.

How to pronounce icosahedron

  1. Open the pronunciation page — Open the Speakur entry for “icosahedron”.
  2. Read the phonetic spelling — Read the IPA spelling (/(ˌ)aɪˌkoʊsəˈhiːdɹən/) so you know which sounds to aim for.
  3. Play the audio — Click Play to hear reference audio for “icosahedron”.
  4. Repeat and practice — Say “icosahedron” aloud, matching stress and vowels until it feels natural.