#prismatoid  a polyhedron whose vertices all lie in one or the other of two parallel planes; the faces that lie in those planes are the bases of the prismatoid
  supertype:  polyhedron  a solid figure bounded by plane polygons or faces
  subtype:  prismoid  a prismatoid whose bases are polygons having the same number of sides and whose other faces are trapezoids or parallelograms

No statement uses or specializes prismatoid; click here to add one.