a polyhedron with 12 faces

A dodecahedron is a polyhedron with 12 faces.

any polyhedron with twelve faces, but

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.

a three-dimensional shape with twelve sides

A dodecahedron is a three-dimensional shape with twelve sides.

a 12-sided shape formed from pentagons

A dodecahedron is a 12-sided shape formed from pentagons.

bounded by twelve equal pentagons

A dodecahedron is a regular solid bounded by twelve equal pentagons.

The only possible platonic solid formed with a regular pentagon

The only possible platonic solid formed with a regular pentagon is called a dodecahedron.

one of the five types of regular polyhedrons that constitute the “Platonic solids”

The dodecahedron is one of the five types of regular polyhedrons that constitute the “Platonic solids”.

an expression of life and consciousness

The Dodecahedron is an expression of life and consciousness, allowing us to go beyond the physical vibrations of the body and to reconnect with the higher vibration of our true nature.