snellen chart snellen • snellen test · · · Info · Definitions · Characters · · snellen chart · · Text Common · · Latin · · Scripts 13 · · Length 3 · · Syllables Definitions · · · (noun) display consisting of a printed card with letters and numbers in lines of decreasing size; used to test visual acuity. Synonyms: Snellen chart. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 l latin small letter l U+006C n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074