DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   blinker
       n 1: a light that flashes on and off; used as a signal or to
            send messages [syn: blinker, flasher]
       2: a blinking light on a motor vehicle that indicates the
          direction in which the vehicle is about to turn [syn:
          blinker, turn signal, turn indicator, trafficator]
       3: blind consisting of a leather eyepatch sewn to the side of
          the halter that prevents a horse from seeing something on
          either side [syn: winker, blinker, blinder]
       v 1: put blinders on (a horse)