snub dodecahedron noun1 •A polyhedron that has 12 pentagonal and 80 triangular faces and is an Archimedean solid.This gives two points, A’, A₁’, which are projections of vertices of the two enantiomorphous snub dodecahedra that can be inscribed in the regular dodecahedron. — 1935 formssnub dodecahedra · snub dodecahedrons