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

Derived forms: split seconds

Type of: bit, minute [Brit], mo [Brit], moment [Brit], second [Brit]

Encyclopedia: Split second