DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   darter
       n 1: fish-eating bird of warm inland waters having a long
            flexible neck and slender sharp-pointed bill [syn:
            snakebird, anhinga, darter]
       2: a person or other animal that moves abruptly and rapidly;
          "squirrels are darters"