femtosecond

noun

fem·​to·​sec·​ond ˈfem(p)-tə-ˌse-kənd How to pronounce femtosecond (audio)
-kənt,
-tō-
: one quadrillionth of a second

Examples of femtosecond in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The use of a Femto laser, capable of emitting extremely short light pulses in the order of femtoseconds, allows for unprecedented precision in engraving. Bhanu Chopra, Forbes, 31 Oct. 2024 In electrons, these states occur over femtoseconds (quadrillionths of a second), and distances of fractions of a nanometer, which of course is hard to capture. Michael Irving, New Atlas, 11 Sep. 2024 The simulations need to account for atomic vibrations that occur on the scale of femtoseconds while simulating physical and chemical changes, such as changes in an atom’s position relative to its neighbors, that emerge on the scale of microseconds. The Physics Arxiv Blog, Discover Magazine, 24 May 2024 The resulting oscillator has reduced the jitter in the system to just 15 femtoseconds Today, these applications rely on microwave oscillators. IEEE Spectrum, 19 Mar. 2024 See all Example Sentences for femtosecond 

Word History

First Known Use

1976, in the meaning defined above

Time Traveler
The first known use of femtosecond was in 1976

Dictionary Entries Near femtosecond

Cite this Entry

“Femtosecond.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/femtosecond. Accessed 1 Dec. 2024.

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