DuckCorp

DuckCorp Dico

(RFC 2229 compliant dictionary server)
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Found one definition 

  1.                 From WordNet (r) 3.0 (2006):
                

    
                
                  
    Rex
    n 1: a male sovereign; ruler of a kingdom [syn: king, male
 monarch, Rex] [ant: female monarch, queen, queen
 regnant]