Sphenocorona

noun

noun ·Rare ·Advanced level

Definitions

Noun

1
A polyhedron, one of the Johnson solids, whose faces are composed of 12 equilateral triangles and 2 squares.

Etymology

Blend of sphenoid + corona or from spheno- + corona. Coined by Norman W. Johnson in 1969.

Related phrases

augmented sphenocorona augmented sphenocorona johnson solid

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.