triacontagon
triacontagon noun: a polygon with thirty sides.

Noun
triacontagon (plural triacontagons)
- A polygon with thirty sides.
- After projection onto the (x₁, x₂) plane, the A’s, B’s, C’s, and D’s form four concentric triacontagons, inscribed in circles of radii a, b, c, and d.1947, H. S. M. Coxeter, Regular Polytopes, published 2012, unnumbered page
- In the projection the 600 points can be classified in 12 sets: each set consists of either of 30 or of 60 vertices which lie on a circle concentric with the outer triacontagon.1964 July, B. L. Chilton, On the Projection of the Regular Polytope {5, 3, 3} into a Regular Triacontagon, Canadian Mathematical Bulletin, Volume 7, Number 3, page 386
- Synonyms:
- 30-gon
Synonyms of triacontagon
Forms of triacontagon
| plural | triacontagons |
|---|
Origin of triacontagon
From triaconta- + -gon.
Questions about triacontagon
- What does triacontagon mean?
- Triacontagon means a polygon with thirty sides.
- What part of speech is triacontagon?
- Triacontagon is a noun.
- What is the plural of triacontagon?
- The plural of triacontagon is triacontagons.
Words near triacontagon in the dictionary
Source and license
Adapted from Wiktionary: triacontagon (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: LL-Q1860 (eng)-Flame, not lame-triacontagon.wav.
Cite this entry: “triacontagon.” Word.ws, https://word.ws/triacontagon. Based on Wiktionary, CC BY-SA 4.0.
