WordNet (r) 3.0 (2006):

witloof
    n 1: widely cultivated herb with leaves valued as salad green;
         either curly serrated leaves or broad flat ones that are
         usually blanched [syn: endive, witloof, Cichorium
         endivia]
    2: young broad-leaved endive plant deprived of light to form a
       narrow whitish head [syn: Belgian endive, French endive,
       witloof]