missouri compromise Missouri cactus • missouri goldenrod · · · Info · Definitions · Characters · · missouri compromise · · Text Common · · Latin · · Scripts 19 · · Length 6 · · Syllables Definitions · · · (noun) an agreement in 1820 between pro-slavery and anti-slavery factions in the United States concerning the extension of slavery into new territories. Synonyms: Missouri Compromise. · · Noun Definition 1 Characters · · space U+0020 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 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 u latin small letter u U+0075