dodecahedron
/ˌdoʊdɛkəˈhiːdrən/
noun
- A three-dimensional shape with twelve flat faces, each usually a regular pentagon.
- The dice in that fantasy game is shaped like a dodecahedron.
- She carefully drew a net of a dodecahedron for her math project.
- A dodecahedron is one of the five Platonic solids.