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.
For years, this ultrafast breakdown happening within just one to two femtoseconds (10-15 seconds) has been one of physics’ most stubborn blind spots.—Rupendra Brahambhatt, Interesting Engineering, 5 Apr. 2026 The new prototype, still very far from being practical, took femtoseconds (quadrillionths of a second) to charge and stored the energy for nanoseconds.—New Atlas, 4 Apr. 2026 Black cautions there remain questions about how feasible this strategy can prove at scale, as femtosecond lasers are currently expensive.—IEEE Spectrum, 18 Feb. 2026 Data is written encoded in an array of data matrices using a 2-D digital micro mirror with up to 2 million elements simultaneously written by femtosecond laser pulses in the UV spectrum with a write speed of 1GB/s and with less than 1W average power.—Thomas Coughlin, Forbes.com, 21 Jan. 2026 See All Example Sentences for femtosecond