Femtosecond
[fem'təʊsi:kənd]
Definition
(noun.) one quadrillionth (10^-15) of a second; one thousandth of a picosecond.
Checker: Uriah--From WordNet
[fem'təʊsi:kənd]
(noun.) one quadrillionth (10^-15) of a second; one thousandth of a picosecond.
Checker: Uriah--From WordNet