microsecond

noun

mi·​cro·​sec·​ond ˈmī-krō-ˌse-kənd 

-kənt

: one millionth of a second

Examples of microsecond in a Sentence

Recent Examples on the Web

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

Word History

Etymology

International Scientific Vocabulary

First Known Use

1906, in the meaning defined above

Rhymes for microsecond

• femtosecond
• millisecond
• nanosecond
• picosecond
• beckoned
• reckoned
• second
• seconde

Kids Definition

microsecond

noun

mi·​cro·​sec·​ond ˌmī-krō-ˈsek-ənd 

-ənt

: one millionth of a second

Medical Definition

microsecond

noun

mi·​cro·​sec·​ond ˈmī-krō-ˌsek-ənd, -ənt 

: one millionth of a second