prismatoid

US:USA pronunciation: respellingUSA pronunciation: respelling(prizmə toid′)


WordReference Random House Unabridged Dictionary of American English © 2025
pris•ma•toid  (prizmə toid′),USA pronunciation n. [Geom.]
  1. Mathematicsa polyhedron having its vertices lying on two parallel planes.
  • Greek prīsmat- (stem of prîsma) prism + -oid
  • 1855–60


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