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

Derived forms: prisms

See also: prismatic

Type of: optical device, polyhedron

Part of: biprism, prism spectroscope, scope, spectroscope, telescope

Encyclopedia: Prism

• setoff
• Seton
• Setophaga
• Setophaga ruticilla
• setose
• setscrew
• Setswana
• sett
• settee
• setter
• setterwort
• setting
• setting hen
• settle
• settle down
• settle on
• settled
• settlement
• settlement house
• settler
• settling
• settlings
• settlor
• Setubal
• setup