SynonymX
Speak
Attosecond
Definition of Attosecond
1.
One quintillionth (10^-18) of a second; one thousandth of a femtosecond
Noun
Semanticaly linked words with "attosecond"
time unit
unit of time
femtosecond
Hyponims for word "attosecond"
time unit
unit of time