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Prism

Prism

WordNet



noun


(1)   Optical device having a triangular shape and made of glass or quartz; used to deviate a beam or invert an image
(2)   A polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms
Wiktonary



Etymology


prisma, from πρίσμα prisma "something sawed", from πρίζειν prizein "to saw".

Noun



  1. A polyhedron with parallel ends of the same size and shape, the other faces being parallelogram-shaped sides.
  2. A transparent block in the shape of a prism (typically with triangular ends), used to split or reflect light.
  3. A crystal in which the faces are parallel to the vertical axis.