Prismatoid

A prismatoid is a specific type of polyhedron that can be considered as a generalized prism. In geometry, a prismatoid is defined as a three-dimensional solid that has two parallel faces (called bases) that can be any polygon and all other faces that are trapezoidal or triangular. Essentially, it has a structure where the top and bottom faces are connected in such a way that they aren't necessarily congruent or identical in shape.