soursob noun2 •Bermuda buttercup (Oxalis pes-caprae), an edible wood sorrel native to South Africa. •Any wood sorrel, especially when used as food.Soursop. Mr. J. E. Taylor read a short paper on the “Soursop” (Oxalis). It was to be regretted that those who introduced this weed were not better acquainted with its habits. — 1905 formssoursobs
