Prismatoid meaning

prĭzmə-toid
A polyhedron all of whose vertices lie in one of two parallel planes.
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A polyhedron with all of its vertices in two parallel planes, as a pyramid or prism.
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(mathematics) Any polyhedron whose vertices all lie in either of two parallel planes.
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Origin of prismatoid

  • Greek prīsma prīsmat- prism –oid

    From American Heritage Dictionary of the English Language, 5th Edition