river birch river bass • river-blanched · · · Info · Definitions · Characters · · river birch · · Text Common · · Latin · · Scripts 11 · · Length Definitions · · · (noun) birch of swamps and river bottoms throughout the eastern United States having reddish-brown bark. Synonyms: black birch, red birch, Betula nigra. · · Noun Definition 1 Characters · · space U+0020 b latin small letter b U+0062 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 r latin small letter r U+0072 v latin small letter v U+0076