nanosecond

n. one-billionth of one second

To help compare orders of magnitude of different times this page lists times between 10−9 seconds and 10−8 seconds (1 nanosecond and 10 nanoseconds). A nanosecond is one billionth of a second. See also times of other orders of magnitude. shorter times1.0 nanoseconds (1.0 ns) – cycle time for frequency  1 GHz, radio wavelength 0.3 m1.02 nanoseconds (approximately) – time taken for  light to travel 1 foot3.33564095 nanoseconds (approximately) – time taken for  light to travel 1 metrelonger timesGrace Hopper often used pieces of wire which were just under one foot long, which is the distance that light travels in one nanosecond, to help explain timing of satellite communication and computers.
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Noun
1. one billionth of a second; one thousandth of a microsecond
(hypernym) time unit, unit of time
(part-holonym) microsecond
(part-meronym) picosecond

<unit> (ns) 10^-9 seconds; one thousand millionth part of a second.
This is the unit in which the fundamental logical operations of modern digital circuits are typically measured. For example, a microprocessor with a clock frequency of 100 megahertz will have a 10 nanosecond clock period.
(1996-11-15)

nanosecond
nanô giây, nanosec (ns)
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