vatican i Vatican fragment • vaticanic · · · Info · Definitions · Characters · · vatican i · · Text Common · · Latin · · Scripts 9 · · Length 4 · · Syllables Definitions · · · (noun) the Vatican Council in 1869-1870 that proclaimed the infallibility of the pope when speaking ex cathedra. Synonyms: First Vatican Council, Vatican I. · · Noun Definition 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 n latin small letter n U+006E t latin small letter t U+0074 v latin small letter v U+0076