Citations:sphenomegacorona

"If we define a lune as a complex of two triangles attached to opposite sides of a square, the prefix spheno- refers to a wedgelike complex formed by two adjacent lunes. The prefix dispheno- denotes two such complexes, while hebespheno- indicates a blunter complex of two lunes separated by a third lune.  The suffix -corona refers to a crownlike complex of eight triangles, and -megacorona, to a larger such complex of 12 triangles.  The suffix -cingulum indicates a belt of 12 triangles."

Attributed to Norman W. Johnson; found in an article by George Hart: