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optical fiberoptical fibre
optical flint
optical fusion
optical glass
optical grep
optical illusion
optical instrument
optical isomerism
optical lens
Optical Mark Reader
optical maser
optical mouse
optical opacity
Optical parallax
optical phenomenon
-- optical prism --
optical pyrometer
Optical square
Optical Storage Technology Association
optical telescope
Optical Time Domain Reflectometer
Optical Time Domain Reflectometry
Optically
Optically active
Optically positive
Optician
Optics
Optigraph
Optima est lex
Optimacy
optimal
optimally
optical prism
| Noun | 1. |  optical prism - optical device having a triangular shape and made of glass or quartz; used to deviate a beam or invert an imageSynonyms: prism |