Speakur

Word Pronunciation & Dictionary

tetrahedron

/ˌtɛtɹəˈhiːdɹən/

Word Rarity Very rare

Frequency: Zipf frequency 2.30 in modern English

Syllables
tetra-he-dron
IPA
/ˌtɛtɹəˈhiːdɹən/
15
Scrabble Score
11
Letters
4
Syllables
8
Unique Chars

Meaning

noun

A polyhedron with four faces; the regular tetrahedron, the faces of which are equal equilateral triangles, is one of the Platonic solids.

Etymology

From Ancient Greek τετράεδρον (tetráedron, “triangle-based pyramid”), from τετράεδρος (tetráedros), from τετράς (tetrás, “four”) + ἕδρα (hédra, “seat”). By surface analysis, tetra- + -hedron.

Word Breakdown

Inflected Forms

tetrahedra (plural) tetrahedrons (plural) tetraedrum (alternative, obsolete)

Derived Forms

hexatetrahedron hextetrahedron hypertetrahedron icositetrahedron orthotetrahedron polytetrahedron supertetrahedron tetrahedral tetrahedrality tetrahedralizable tetrahedrally tetrahedrane

Phrases

fire tetrahedron Hill tetrahedron triakis tetrahedron truncated tetrahedron

Rhymes With

octahedron polyhedron rhombicosidodecahedron pentahedron

Questions

How do you pronounce tetrahedron?
The recorded pronunciation is /ˌtɛtɹəˈhiːdɹən/.
What does tetrahedron mean?
A polyhedron with four faces; the regular tetrahedron, the faces of which are equal equilateral triangles, is one of the Platonic solids.
Where does tetrahedron come from?
From Ancient Greek τετράεδρον (tetráedron, “triangle-based pyramid”), from τετράεδρος (tetráedros), from τετράς (tetrás, “four”) + ἕδρα (hédra, “seat”). By surface analysis, tetra- + -hedron.

How to pronounce tetrahedron

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