BLINKER
blinker, flasher
(noun) a light that flashes on and off; used as a signal or to send messages
winker, blinker, blinder
(noun) blind consisting of a leather eyepatch sewn to the side of the halter that prevents a horse from seeing something on either side
blinker, turn signal, turn indicator, trafficator
(noun) a blinking light on a motor vehicle that indicates the direction in which the vehicle is about to turn
blinker
(verb) put blinders on (a horse)
Source: WordNet® 3.1
Etymology
Noun
blinker (plural blinkers)
Anything that blinks, such as the turn signal of an automobile.
Eye shields attached to a hood for horses, to prevent them from seeing backwards and partially sideways.
Whatever obstructs sight or discernment.
(rare) The eyelid.
(cellular automata) In Conway's Game of Life, an arrangement of three cells in a row that switches between horizontal and vertical orientations in each generation.
Synonyms
• (turn signal of an automobile): directional, directional signal, indicator, trafficator, turn indicator, turn signal
• (eye shield for a horse): blinder, winker
Verb
blinker (third-person singular simple present blinkers, present participle blinkering, simple past and past participle blinkered)
To put blinkers on.
Source: Wiktionary
Blink"er, n.
1. One who, or that which, blinks.
2. A blinder for horses; a flap of leather on a horse's bridle to
prevent him from seeing objects as his side hence, whatever obstructs
sight or discernment.
Nor bigots who but one way see, through blinkers of authority. M.
Green.
3. pl.
Definition: A kind of goggles, used to protect the eyes form glare, etc.
Source: Webster’s Unabridged Dictionary 1913 Edition