petit jury petit juror • petit larceny · · · Info · Definitions · Characters · · petit jury · · Text Common · · Latin · · Scripts 10 · · Length Definitions · · · (noun) a jury of 12 to determine the facts and decide the issue in civil or criminal proceedings. Synonyms: petty jury. · · Noun Definition 1 Characters · · space U+0020 e latin small letter e U+0065 i latin small letter i U+0069 j latin small letter j U+006A p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075 y latin small letter y U+0079