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

Muons last a mere 2 microseconds, and other species are even more fleeting. — George Musser, Quanta Magazine, 2 Nov. 2026

Round-trip latency could fall from the microsecond range to several hundred nanoseconds, representing a reduction of up to an order of magnitude. — Neetika Walter, Interesting Engineering, 8 Sep. 2026

Rather than querying a database or ingesting raw, uninterpreted telemetry streams, an AI model can use an in-memory digital twin to instantly access the full state of a live system, with all data reachable in microseconds. — William Bain, Forbes.com, 17 Aug. 2026

The camera read out 740 frames per second with exposures of 100 microseconds. — Jacek Krywko, ArsTechnica, 7 Aug. 2026

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