The story
From hebe- (“blunt”) + spheno- + mega- + corona. Compare sphenocorona, sphenomegacorona. Coined by Norman W. Johnson in 1969.
Etymology from Wiktionary, CC BY-SA 4.0.
hebesphenomegacorona
Today it means: A polyhedron, one of the Johnson solids, having 18 triangular and 3 square faces. Full definition →