DuckCorp Dico

Found one definition

1.                 From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
                   
   
   
                   
                     
   balls of thread /bˈɔːlz ɒv θɹˈɛd/
   Knäule <pl>, Knäuel <pl>, Garnknäule <pl>, Garnknäuel <pl>
      Synonym: clews
    see: clew, ball of thread