microsecond

noun

mi·​cro·​sec·​ond ˈmī-krō-ˌse-kənd How to pronounce microsecond (audio)
-kənt
Synonyms of microsecondnext
: 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.
Atom Power’s digital breaker eliminates this risk, by cutting the power in nanoseconds or microseconds. Charlotte Observer, 11 Mar. 2026 According to the company, Beam will deliver fiber-competitive speeds of up to 25 gigabits per second with low, 50-microsecond latency. Margo Anderson, IEEE Spectrum, 4 Mar. 2026 However, this predictable behavior breaks down during ultra-high-speed deformation that occurs in mere fractions of a microsecond. Mrigakshi Dixit, Interesting Engineering, 16 Feb. 2026 In 2010, Zurek and his collaborator Jess Riedel calculated that within a microsecond, photons from the sun will imprint the location of a grain of dust about 10 million times. Quanta Magazine, 13 Feb. 2026 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 14 Mar. 2026.

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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