microsecond

noun

mi·​cro·​sec·​ond ˈmī-krō-ˌse-kənd How to pronounce microsecond (audio)
-kənt
: one millionth of a second

Examples of microsecond 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.
For approximately the first microsecond of the Universe after the start of the hot Big Bang, there were no protons and neutrons, but rather only a quark-gluon plasma, tightly coupled to all the other forms of matter, antimatter, and radiation that existed back then. Big Think, 6 Mar. 2025 Every microsecond counts, and data needs to be trusted absolutely; win-or-lose decisions depend on it. Hugo Feiler, Forbes, 22 Nov. 2024 Every instant at which the brightness change exceeds a certain threshold, with microsecond timing. IEEE Spectrum, 5 Nov. 2024 Thanks to a creative retrofit of an old U-2 spy plane courtesy of NASA, however, researchers are finally able to conduct direct analysis of these microsecond bursts of radioactive energy that occur across the planet every day. Andrew Paul, Popular Science, 2 Oct. 2024 See All Example Sentences for microsecond

Word History

Etymology

International Scientific Vocabulary

First Known Use

1906, in the meaning defined above

Time Traveler
The first known use of microsecond was in 1906

Browse Nearby Words

Cite this Entry

“Microsecond.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microsecond. Accessed 18 Apr. 2025.

Kids Definition

microsecond

noun
mi·​cro·​sec·​ond ˌmī-krō-ˈsek-ənd How to pronounce microsecond (audio)
-ənt
: one millionth of a second

Medical Definition

microsecond

noun
mi·​cro·​sec·​ond ˈmī-krō-ˌsek-ənd, -ənt How to pronounce microsecond (audio)
: one millionth of a second

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