[row.an] n [of Scand origin; akin to ON reynir rowan; akin to OE read red--more at red] (1804) 1 a: a Eurasian mountain ash (Sorbus aucuparia) with flat corymbs of white flowers followed by small red pomes b: an American mountain ash (Sorbus americana) with flat corymbs of white flowers followed by small orange red pomes
2: the fruit of a rowan