sorrel UK /ˈsɒɹəl/US /ˈsɔɹəl/noun 6adjective 1forms 1 noun6 •Any of various plants with acidic leaves of the genus Rumex. •Rumex acetosa (common sorrel, garden sorrel), sometimes used as a salad vegetable. •A brown colour, with a tint of red. •A drink, consumed especially in the Caribbean around Christmas, made from the flowers of Hibiscus sabdariffa: hibiscus tea.Joy and the parents did not go either; we spent a quiet day at home, eating roast chicken and stuffing with our own green-gungu rice and peas, and drinking sorrel. — 2012 •Members of genus Oxalis or family Oxalidaceae, woodsorrels. •The roselle, Hibiscus sabdariffa. adjective1 •Of a brown colour, with a tint of red. (especially: a sorrel horse) formssorrels