deltahedron en · NOUN
Pronunciation
- (US) audio
Etymology
From delta (Greek letter) + -hedron referring to the triangular shape of the letter.
Meanings
-
A polyhedron whose faces are all equilateral triangles.
There are infinitely many deltahedra, but only eight that are convex.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| deltahedrons | Number=Plur | lexicographic | |
| deltahedra | Number=Plur | lexicographic |