goldenrod /ˈɡoʊldənˌɹɑd/noun 2adjective 1forms 3 noun2 •Any tall-stemmed plant principally from genus Solidago (also Oligoneuron), usually with clusters of small yellow flowers. •A golden-yellow colour, like that of the goldenrod plant.She wore a goldenrod dress with a scooping neckline. — 2020 adjective1 •Of a golden-yellow colour, like that of the goldenrod plant. formsgoldenrods · more goldenrod · most goldenrod