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prismoid
pris·moid [ príz mòyd ] (plural pris·moids)


noun 
Definition:
 
type of polyhedron: a body like a prism with sides that are parallelograms or trapezoids and equal-sided polygons as bases
[Early 18th century. <prism, after rhomboid]

pris·moi·dal [ priz móyd'l ] adjective
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