blinker

Meanings

1. 1
   noun

   a flashing light on a vehicle that signals an intended turn

   The driver switched on the left blinker before changing lanes.

2. 2
   noun

   one of a pair of leather shields beside a horse's eyes that restrict its sideways vision, also used figuratively for a narrow outlook

   The carriage horse wore blinkers to keep it focused on the road.

Formed from blink + the agent or instrument suffix -er. The equestrian sense names a device that limits what a horse can see; the vehicle sense names a light that repeatedly blinks to signal a turn.

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