prismoid

from WordNet (r) 3.0 (2006)

prismoid
    n 1: a prismatoid whose bases are polygons having the same
         number of sides and whose other faces are trapezoids or
         parallelograms

from The Collaborative International Dictionary of English v.0.48

Prismoid \Pris"moid\ (pr[i^]z"moid), n. [Cf. F. prismto["i]de.]
   A body that approaches to the form of a prism.
   [1913 Webster]

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