Word.ws English Dictionary

deltahedron

deltahedron noun: a polyhedron whose faces are all equilateral triangles.

Noun

deltahedron (plural deltahedrons or deltahedra)

  1. A polyhedron whose faces are all equilateral triangles.
    • There are infinitely many deltahedra, but only eight that are convex.

Forms of deltahedron

pluraldeltahedrons
pluraldeltahedra

Origin of deltahedron

From delta (Greek letter) + -hedron referring to the triangular shape of the letter.

Questions about deltahedron

What does deltahedron mean?
Deltahedron means a polyhedron whose faces are all equilateral triangles.
What part of speech is deltahedron?
Deltahedron is a noun.
What is the plural of deltahedron?
The plural of deltahedron is deltahedrons.

Words near deltahedron in the dictionary

  1. deltaflexivirus
  2. deltaflexiviruses
  3. deltaform
  4. deltahedra
  5. deltahedral
  6. deltahedron
  7. deltahedrons
  8. deltaic
  9. deltaing
  10. deltal
  11. deltaline

Source and license

Adapted from Wiktionary: deltahedron (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-deltahedron.wav.

Cite this entry: “deltahedron.” Word.ws, https://word.ws/deltahedron. Based on Wiktionary, CC BY-SA 4.0.