femtosecond | sense examples, Usage and Definition from wordnet dictionary online

Noun femtosecond has 1 sense

femtosecond - one quadrillionth of a second; one thousandth of a nanosecond
--₁ is a kind of time unit, unit of time
--₁ is a part of picosecond
--₁ has part: attosecond

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