pentadecahedron
pentadecahedron noun: a polyhedron with fifteen faces.

Noun
pentadecahedron (plural pentadecahedra or pentadecahedrons)
- A polyhedron with fifteen faces.
- Synonyms:
- pentakaidecahedron
Synonyms of pentadecahedron
Forms of pentadecahedron
| plural | pentadecahedra |
|---|---|
| plural | pentadecahedrons |
Origin of pentadecahedron
From pentadeca- + -hedron.
Questions about pentadecahedron
- What does pentadecahedron mean?
- Pentadecahedron means a polyhedron with fifteen faces.
- What part of speech is pentadecahedron?
- Pentadecahedron is a noun.
- What is the plural of pentadecahedron?
- The plural of pentadecahedron is pentadecahedra.
Words near pentadecahedron in the dictionary
Source and license
Adapted from Wiktionary: pentadecahedron (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-pentadecahedron.wav.
Cite this entry: “pentadecahedron.” Word.ws, https://word.ws/pentadecahedron. Based on Wiktionary, CC BY-SA 4.0.
