DuckCorp

DuckCorp Dico

(RFC 2229 compliant dictionary server)
more options

Found one definition 

  1.                 From The Collaborative International Dictionary of English v.0.48:
                

    
                
                  
    Seid \Seid\, n. [Ar seyid prince.]
   A descendant of Mohammed through his daughter Fatima and
   nephew Ali.
   [1913 Webster]