noun. A polyhedron with 12 faces.

noun. In geometry, a solid having twelve faces. Also duodecahedron.

noun. A solid having twelve faces.

noun. A polyhedron with twelve faces; the regular dodecahedron has regular pentagons as faces and is one of the Platonic solids.

noun. any polyhedron having twelve plane faces

"A dodecahedron is any polyhedron with twelve faces, but usually a regular dodecahedron is meant: a Platonic solid composed of twelve regular pentagonal faces, with three meeting at each vertex."

deltoid dodecahedron  great dodecahedron  great stellated dodecahedron  ordinary dodecahedron  regular dodecahedron  

dodecadodecahedron  dodecahedral  great dodecahedron  icosidodecahedron  rhombicosidodecahedron  

polyhedron  

centra  datahedron  door-knob  octahedron  tesseract