Definition of femtosecond
: one quadrillionth of a second
Recent Examples of femtosecond from the Web
Within 30 femtoseconds – millionths of a billionth of a second – the molecule lost more than 50 electrons, far more than expected.
Computational approaches to protein structure focused on cunning algorithms, rather than on attempting to track atoms femtosecond by femtosecond.
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