irregular prism

Noun

 * 1)  a prism whose cross section is an irregular polygon
 * 2)  a solid that is like a prism but whose cross section is not (necessarily) a polygon
 * 1)  a solid that is like a prism but whose cross section is not (necessarily) a polygon
 * 1)  a solid that is like a prism but whose cross section is not (necessarily) a polygon