nonahedron
1 of 1noun/ˌnɑnəˈhidrən/
Forms:nonahedra
1
a shape with nine flat sides that connect along their edges
- The nonahedron has nine faces, eighteen edges, and twelve vertices.
- I struggled to visualize the nonahedron in my geometry class.
- The architect used a nonahedron as the basis for the design of the new building.
- The student constructed a nonahedron model for her math project.