0 a very short moment of time: --
We had to make a split-second (= very quick) decision.
They brought out guns and for a split second nobody moved.
1 a very short period of time: --
For a split second we thought the bus would crash.
The watches had split seconds chronograph, minute repeater, and a perpetual calendar.
If you put that one red chilly into the fire, suddenly within split seconds the entire mob could be affected.
NYA ORD
European
May 10, 2021
DAGENS ORD
Shimmer
split second
