DuckCorp Dico

Found one definition

1.                 From en.wiktionary.org:
                   
   
   
                   
                     
   
   ** English
   
   *** Noun
   [en-noun]
   
    1. [en]  A small single block strapped with a swivel . [1]
   *** References
   
   References:
   [1].  1841 , [Richard Henry Dana Jr.] , _The Seaman's Friend_