Attosecond (original) (raw)

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I. (noun)

Sense 1

Meaning:

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

Classified under:

Nouns denoting time and temporal relations

Hypernyms ("attosecond" is a kind of...):

time unit; unit of time (a unit for measuring time periods)

Holonyms ("attosecond" is a part of...):

femtosecond (one quadrillionth (10^-15) of a second; one thousandth of a picosecond)

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