prismatoid

[ priz-muh-toid ]

nounGeometry.
  1. a polyhedron having its vertices lying on two parallel planes.

Origin of prismatoid

1
1855–60; <Greek prīsmat- (stem of prîsma) prism + -oid

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British Dictionary definitions for prismatoid

prismatoid

/ (ˈprɪzməˌtɔɪd) /


noun
  1. a polyhedron whose vertices lie in either one of two parallel planes: Compare prism (def. 3), prismoid

Origin of prismatoid

1
C19: from Greek prismatoeidēs shaped like a prism; see prism, -oid

Derived forms of prismatoid

  • prismatoidal, adjective

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