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F__________
Definitions
one quadrillionth (10^-15) of a second; one thousandth of a picosecond
Word origin
From femto- + second.
Used in a sentence
“Meronyms: quectosecond < rontosecond < yoctosecond < zeptosecond < attosecond”
“Sheldon Cooper: My hair is growing at the rate of 4.6 yoctometers per femtosecond.”
“The observation and manipulation of electron dynamics in matter call for attosecond light pulses, routinely available from high-order harmonic generation driven by few-femtosecond lasers.”
Source: Wiktionary, CC BY-SA 4.0
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