Meanings of platonic polyhedron in English

Five Platonic solids: tetrahedron, cube, octahedron, dodecahedron, icosahedron.

Are not the five platonic solids, of which Plato had so much to say, just various crystalline forms?

It was a perfect evocation of the ghostly quality of "surgical" Cold War combat: We fight amongst Platonic solids!

The highlight of the 13th and final book of Euclid's Elements was the proof that there are just five " Platonic solids".

Suppose, for example, that we attempt to deal decoratively which such simple figures as the three lowest Platonic solids-thetetrahedron, the hexahedron, and the octahedron.