noun
- a polyhedron having two parallel faces (bases) that are polygons, with other faces being quadrilaterals
Usage: geometry
Examples
- The architect designed the building as a prismoid with triangular bases.
- A prismoid differs from a prism in that its bases need not be congruent.
- The volume of a prismoid can be calculated using Simpson’s rule.
- Students learned to identify prismoids in their solid geometry class.
- The crystal formed a natural prismoid shape with pentagonal faces.
- Engineers used prismoid calculations to determine the earthwork volume.