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attosecond

American  
[at-oh-sek-uhnd] / ˈæt oʊˌsɛk ənd /

noun

attoseconds plural
  1. a unit of time equal to one quintillionth (10-18) of a second. Abbreviation: as.


Other Word Forms

Noun Inflected Forms

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

This nonlinear optical technique is capable of tracking electron motion on attosecond timescales.

From Science Daily Jan. 5, 2026

"It's exciting to see these developments being applied to new kinds of experiments and taking attosecond science into new directions."

From Science Daily Feb. 15, 2024

The researchers envision the current study as the beginning of a whole new direction for attosecond science.

From Science Daily Feb. 15, 2024

As researchers continue to improve their ability to produce attosecond light pulses, they’ll gain a deeper understanding of the basic particles that make up matter.

From Salon Oct. 10, 2023

Before understanding why attosecond research resulted in the most prestigious award in the sciences, it helps to understand what an attosecond pulse of light is.

From Salon Oct. 10, 2023

In the layered materials TiSe₂ and TiTe₂, the same process slowed to between 140 and 175 attoseconds.

From Science Daily Feb. 9, 2026

In fact, there are approximately as many attoseconds in one second as there are seconds in the age of the universe.

From Salon Oct. 10, 2023

This duration is so short that there are as many attoseconds in a single second as there have been seconds in the entire history of the universe.

From Scientific American Oct. 3, 2023

The Royal Swedish Academy of Sciences said the three laureates' experiments produced "pulses of light so short that they are measured in attoseconds".

From BBC Oct. 3, 2023

But electron movements are extremely hard to capture because they take place within attoseconds: the realm of quintillionths of a second.

From Science Daily Sep. 29, 2023

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