Nanosecond
A nanosecond was a unit of time equal to one billionth of a second.

In 2365, the  was destroyed by a plasma vent that lasted T+2.25 nanoseconds. ()

To attract the attention of the Crystalline Entity, the  emitted five-nanosecond graviton emissions at one pulse per second. ()

See also 
 Calculations per nanosecond

External link 
 

de:Nanosekunde
Time measurements