optical prism optical phenomenon • optical pyrometer · · · Info · Definitions · Synonyms · Characters · · optical prism · · Text Common · · Latin · · Scripts 13 · · Length 5 · · Syllables Definitions · · · (noun) optical device having a triangular shape and made of glass or quartz; used to deviate a beam or invert an image. Synonyms: prism, optical prism. · · Noun Definition 1 Synonyms · · · prism · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074