triangular hebesphenorotunda
nounEtymology From triangular + hebe- (“blunt”) + spheno- + rotunda. Coined by Norman W. Johnson in 1969.
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Geometry, Mathematics, Sciences A polyhedron, one of the Johnson solids, whose faces are composed of 13 triangles, 3 squares, 3 pentagons, and 1 hexagon.
- Related terms
- hebesphenomegacorona, sphenocorona