Sorrel

sor′el, n. one of several species of the genus Rumex , allied to the dock, the leaves impregnated with oxalic acid—the Scotch Sourock . The Wood-sorrel belongs to the genus Oxalis . [O. Fr. sorel (Fr. surelle )— sur , sour; from Old High Ger. sūr (Ger. sauer ), sour.]