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.

Noun
triakis octahedron (plural triakis octahedra)
- 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
| plural | triakis 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
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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Cite this entry: “triakis octahedron.” Word.ws, https://word.ws/triakis_octahedron. Based on Wiktionary, CC BY-SA 4.0.
