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Definitions of femtosecond
  1. noun
    one quadrillionth (10^-15) of a second; one thousandth of a picosecond
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Definition that contains femtosecond
  • femtochemistry the branch of chemistry that studies elementary (often very fast) chemical reactions as they occur; the experimental methods are often based on the use of femtosecond laser pulses
  • attosecond one quintillionth (10^-18) of a second; one thousandth of a femtosecond
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