blue blindness blue-blind • blue-blindness · · · Info · Definitions · Synonyms · Characters · · blue blindness · · Text Common · · Latin · · Scripts 14 · · Length 3 · · Syllables Definitions · · · (noun) rare form of dichromacy characterized by a lowered sensitivity to blue light resulting in an inability to distinguish blue and yellow. Synonyms: tritanopia, blue-blindness. · · Noun Definition 1 Synonyms · · · tritanopia · · Synonym 1 blue-blindness · · Synonym 2 Characters · · space U+0020 b latin small letter b U+0062 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E s latin small letter s U+0073 u latin small letter u U+0075