The story
From delta (Greek letter) + -hedron referring to the triangular shape of the letter.
Etymology from Wiktionary, CC BY-SA 4.0.
deltahedron
Today it means: A polyhedron whose faces are all equilateral triangles. Full definition →
Today it means: A polyhedron whose faces are all equilateral triangles. Full definition →
From delta (Greek letter) + -hedron referring to the triangular shape of the letter.
Etymology from Wiktionary, CC BY-SA 4.0.