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nounone billionth (10^-9) of a second; one thousandth of a microsecondtype of:part of:
Definition that contains nanosecond
- femtovolt a unit of potential equal to one quadrillionth of a volt (or one thousandth of a nanosecond)
- picosecond one trillionth (10^-12) of a second; one thousandth of a nanosecond