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.
The researchers noted that many advanced systems – such as electromagnetic warfare simulators and particle beam platforms – require immense bursts of energy delivered with extreme precision, often at the megawatt level within microsecond or even nanosecond intervals. Bojan Stojkovski, Interesting Engineering, 8 Nov. 2025 And if a hundred fish come out of the water, the AI snaps pictures of that hundred fish, identifies those fish, and puts that into the package in a microsecond. Dan Morrison, USA Today, 7 Nov. 2025 As Traders Magazine notes, even a 200-microsecond delay—caused simply by the physical distance between venues—can determine who executes first and who suffers slippage and adverse selection in fast-moving markets. Ashok Reddy, Forbes.com, 9 Sep. 2025 Understanding quark-gluon plasma could reveal what conditions in the universe were like in its first microseconds and how this gave way to protons and neutrons — and eventually, the matter that populates the cosmos today. Robert Lea, Space.com, 5 Sep. 2025 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 13 Nov. 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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