little missouri river little missouri • little mo connolly · · · Info · Definitions · Characters · · little missouri river · · Text Common · · Latin · · Scripts 21 · · Length 7 · · Syllables Definitions · · · (noun) a river that rises in northeastern Wyoming and flows through Montana and South Dakota to join the Missouri River in North Dakota. Synonyms: Little Missouri, Little Missouri River. · · Noun Definition 1 Characters · · space U+0020 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075 v latin small letter v U+0076