snake river snake-rail fence • snakeroot · · · Info · Definitions · Characters · · snake river · · Text Common · · Latin · · Scripts 11 · · Length 3 · · Syllables Definitions · · · (noun) a tributary of the Columbia River that rises in Wyoming and flows westward; discovered in 1805 by the Lewis and Clark Expedition. Synonyms: Snake, Snake River. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 k latin small letter k U+006B n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 v latin small letter v U+0076