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.
This type of basic system can react to inputs in microseconds. Lee-Lean Shu, Forbes.com, 11 June 2026 Microsoft said the improved qubit stability, combined with operation speeds measured in microseconds and extremely small qubit dimensions, has strengthened its confidence in reaching a scalable quantum computer by the end of the decade. Neetika Walter, Interesting Engineering, 2 June 2026 Super frugal use of memory bandwidth, caching exactly what is needed & squeezing microseconds out of everything are needed to maintain the frame rate. Jack Ewing, New York Times, 2 June 2026 Atom Power’s digital breaker eliminates this risk, by cutting the power in nanoseconds or microseconds. Charlotte Observer, 11 Mar. 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 15 Jun. 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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