The story
From Johnson (“a surname”) + solid, after American mathematician Norman Johnson, who listed them in 1966.
Etymology from Wiktionary, CC BY-SA 4.0.
Johnson solid
Today it means: Any of a class of convex polyhedra that have regular faces but are not uniform (that is, not Platonic solids, Archimedean solids, prisms, or antiprisms). Full definition →