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triakis octahedron

triakis octahedron noun: a Catalan solid with 24 isosceles triangle faces, 36 edges and 14 vertices, being the dual of the truncated cube.

triakis octahedron: a Catalan solid with 24 isosceles triangle faces, 36 edges and 14 vertices, being the dual of the...
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Noun

triakis octahedron (plural triakis octahedra)

  1. A Catalan solid with 24 isosceles triangle faces, 36 edges and 14 vertices, being the dual of the truncated cube.
    • Examined in this way an octahedron of alum (ammonium or potassium) is found to yield, not one, but three images from each face; and closer inspection shows that the crystal is not really an octahedron, but has the form of a very flat triakis-octahedron.1903, Henry Woodward, Geological Magazine, page 266

Forms of triakis octahedron

pluraltriakis octahedra

Origin of triakis octahedron

From Ancient Greek τριάκις (triákis, “thrice”) + English octahedron

Questions about triakis octahedron

What does triakis octahedron mean?
Triakis octahedron means a Catalan solid with 24 isosceles triangle faces, 36 edges and 14 vertices, being the dual of the truncated cube.
What part of speech is triakis octahedron?
Triakis octahedron is a noun.
What is the plural of triakis octahedron?
The plural of triakis octahedron is triakis octahedra.

Words near triakis octahedron in the dictionary

  1. triaging
  2. triagonal
  3. triakid
  4. triakids
  5. triakis icosahedron
  6. triakis octahedron
  7. triakis tetrahedron
  8. triakisoctahedra
  9. triakisoctahedron
  10. triakisoctahedrons
  11. triakistetrahedra

Source and license

Adapted from Wiktionary: triakis octahedron (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.

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