split second

Noun

1.

split second - a very short time (as the time it takes the eye blink or the heart to beat); "if I had the chance I'd do it in a flash" Synonyms: instant, jiffy, New York minute, trice, twinkling, wink, blink of an eye, heartbeat, flash

bit, blink of an eye, flash, heartbeat, instant, jiffy, minute, moment, New York minute, second, trice, twinkling, wink