prismoid
/ˈprɪzˌmɔɪd/
noun
- A solid shape that is like a prism but has bases that are similar but not necessarily congruent polygons, and sides that are trapezoids.
- The architect designed a building with a prismoid shape to make it look modern.
- A prismoid can be thought of as a prism whose top and bottom are different sizes.
- In geometry class, we learned how to calculate the volume of a prismoid.