Definition of femtosecond in English:
One quadrillionth of a second.
- With femtosecond pulses, scientists could for the first time directly observe the shifts in interatomic spacings that take place during reactions.
- A femtosecond is to one second in duration what one second is to 30 million years.
- In other words, what could you do with a femtosecond x-ray source?
Definition of femtosecond in:
- US English dictionary
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