blinker

noun

1. Anything that blinks.

   “She was a frequent blinker, always on the verge of tears.”

2. (Australia, Northern-US, informal)The turn signal of an automobile.
3. (in-plural)A shield attached to the bridle of a horse or other domesticated animal to prevent it from seeing things behind it and to its side.
4. Whatever obstructs sight or discernment.

   “This floor let not the vulgar tread, / Who worship only what they dread: / Nor bigots who but one way see, / Through blinkers of authority”

5. (rare)The eyelid.
6. (slang)A black eye.

   “The next morning, Jimmy came home with a fat lip and a black eye. Flory rushed over to tend to him. “Ain't nothin'. Just a blinker... had a fight with a guy. […]”

7. In Conway's Game of Life, an arrangement of three cells in a row that switches between horizontal and vertical orientations in each generation.

   “The following for example, doesn't work because the spark at the top is actually a blinker, and doesn't die. Without the blinker, this object is known as an OWSS (overweight spaceship).”

   “3 live cells together can yield either a blinker or a block, so these will be the most common objects formed "out of the void".”

   “As Hickerson points out, a glider aimed at a faraway blinker or preblock has only 8 cells, but can be arranged to run as long as you want.”

8. (slang)A situation where the light of a dab pen or vape starts blinking, which happens when the user takes an extremely long hit.

   “a double blinker (hitting blinkers on two pens simultaneously)”

   “I just hit a blinker.”

   “When you just hit 2 back to back blinkers off the dab pen and you trying to hold your cough around people”

verb

1. (transitive)To put blinkers on.

   “The farmer stopped to blinker his horse before riding into an area of heavy traffic.”