'Prismoid' definitions:
Definition of 'prismoid'
(from WordNet)
noun
A prismatoid whose bases are polygons having the same number of sides and whose other faces are trapezoids or parallelograms
Definition of 'Prismoid'
From: GCIDE
- 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]