stone-root stone root • stoner-out · · · Info · Definitions · Synonyms · Characters · · stone-root · · Text Common · · Latin · · Scripts 10 · · Length 3 · · Syllables Definitions · · · (noun) erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers; the eastern United States. Synonyms: horse balm, horseweed, stoneroot, richweed, stone root, Collinsonia canadensis. · · Noun Definition 1 Synonyms · · · horse balm · · Synonym 1 horseweed · · Synonym 2 stoneroot · · Synonym 3 richweed · · Synonym 4 stone root · · Synonym 5 collinsonia canadensis · · Synonym 6 Characters · · - hyphen-minus U+002D e latin small letter e U+0065 n latin small letter n U+006E 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