prism

1. A polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms (synset 113907168)
   is a type of: polyhedron - a solid figure bounded by plane polygons or faces
   subtypes:

   • parallelepiped, parallelepipedon, parallelopiped, parallelopipedon - a prism whose bases are parallelograms
   • quadrangular prism - a prism whose bases are quadrangles
   • triangular prism - a prism whose bases are triangles
2. Optical device having a triangular shape and made of glass or quartz;
   Used to deviate a beam or invert an image (synset 104011716)
   is a type of: optical device - a device for producing or controlling light
   subtypes: erecting prism - a right-angled optical prism used to turn an inverted image upright
   is a part of:

   • biprism - an optical device for obtaining interference fringes
   • prism spectroscope, spectroscope - an optical instrument for spectrographic analysis
   • scope, telescope - a magnifier of images of distant objects
   same as: optical prism

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