English dictionary



Hint: With the Firefox addon you can search this dictionary from the browsers search field.

English noun: attosecond

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


Broader (hypernym)time unit, unit of time


Part meronymfemtosecond









Based on WordNet 3.0 copyright © Princeton University.
Web design: Orcapia v/Per Bang. English edition: .
2025 onlineordbog.dk