DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   floss
       n 1: a soft loosely twisted thread used in embroidery
       2: a soft thread for cleaning the spaces between the teeth [syn:
          dental floss, floss]
       v 1: use dental floss to clean; "floss your teeth after every
            meal"