Blinker

A small period-2 oscillator in the game of life, commonly found in the wild.

.....  .....
.....  ..#..
.###.  ..#..
.....  ..#..
.....  .....

Also known as a turn signal on an automobile, which, although is a useful tool in alerting the public to your turning actions while driving, especially in cases where your turn affects the flow of traffic, seems (by most drivers) optional and almost unnecessary in driving today. I would need several more hands to count on them the number of times someone does not use his/her blinker when it should be used, during a single drive home from work.

See also: turn signals

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.

A kind of goggles, used to protect the eyes form glare, etc.

 

© Webster 1913.