1) Prismatoid 2) Solid with trapezoidal sides 
• (n.) A body that approaches to the form of a prism.
Pris'moid (prĭz'moid) noun [ Confer French prismtoïde .] A body that approaches to the form of a prism. 
[n] - a prismatoid whose bases are polygons having the same number of sides and whose other faces are trapezoids or parallelograms
noun a prismatoid whose bases are polygons having the same number of sides and whose other faces are trapezoids or parallelograms
a solid having sides that are trapezoids and bases or ends that are parallel and similar but not congruent polygons. Cf.(def. 2).