DuckCorp Dico

Found one definition

1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   Dhow \Dhow\, n. [Ar. d[=a]o?]
      A coasting vessel of Arabia, East Africa, and the Indian
      Ocean. It has generally but one mast and a lateen sail. [Also
      written dow.]
      [1913 Webster]