blinker

1. (informal, Australia, Northern US) The turn signal of an automobile.Synonyms: directional, directional signal, direction indicator, indicator, trafficator, turn indicator, turn signal, winkerAustraliaNorthern-USinformal

2. (chiefly in the 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.Synonyms: blinder, winkerin-plural

3. (rare) The eyelid.rare

4. (slang) A black eye.Examples: "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. […]"slang

5. (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.Examples: "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."

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