C2 noun #146,951 most common

one quintillionth (10^-18) of a second; one thousandth of a femtosecond

attosecond in 30 Seconds

  • (noun) one quintillionth (10^-18) of a second; one thousandth of a femtosecond

Meanings

  1. 1
    noun one quintillionth (10^-18) of a second; one thousandth of a femtosecond
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