Meanings
- geometryA polyhedron, one of the Johnson solids, whose faces are composed of 13 triangles, 3 squares, 3 pentagons, and 1 hexagon.
Origin
From triangular + hebe- (“blunt”) + spheno- + rotunda. Coined by Norman W. Johnson in 1969.
Full word history & related roots →Cite this entry
triangular hebesphenorotunda. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/triangular%20hebesphenorotunda
“triangular hebesphenorotunda.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/triangular%20hebesphenorotunda. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “triangular hebesphenorotunda,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/triangular%20hebesphenorotunda.
Source: triangular hebesphenorotunda on Wiktionary, CC BY-SA 4.0.