femtosecond 1
noundomain: time
Princeton WordNet [ver.3.1]
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EnglishDefinition
one quadrillionth (10^-15) of a second; one thousandth of a picosecond
Hypernym
time unit 1
noun
a unit for measuring time periods
Part_meronym
attosecond 1
noun
one quintillionth (10^-18) of a second; one thousandth of a femtosecond
picosecond 1
noun
one trillionth (10^-12) of a second; one thousandth of a nanosecond
EnglishPart_holonym
attosecond 1
noun
one quintillionth (10^-18) of a second; one thousandth of a femtosecond
picosecond 1
noun
one trillionth (10^-12) of a second; one thousandth of a nanosecond
