microsecond

American  

[mahy-kruh-sek-uhnd] / ˈmaɪ krəˌsɛk ənd /

noun

1. a unit of time equal to one millionth of a second. μsec

---

microsecond British  

/ ˈmaɪkrəʊˌsɛkənd /

noun

1.  μs.  one millionth of a second

---

microsecond Scientific  

/ mī′krō-sĕk′ənd /

1. A unit of time equal to one millionth (10 ^{- 6}) of a second.

---

Etymology

Origin of microsecond

First recorded in 1905–10; micro- + second ²

Example Sentences

See Examples For:

microsecond

In practice some firms access it first, and transmit it to traders who are able to exploit microsecond advantages over others.

From The Wall Street Journal ● Jul. 8, 2026

For example, 5G communication systems require timing accuracy within a tenth of a microsecond.

From Science Daily ● Dec. 30, 2025

Then, he recalled, "they would play the points" in endless takes -- with or without the ball -- repeating choreography timed "down to the microsecond".

From Barron's ● Dec. 23, 2025

They’re executing millions of trades on microsecond timescales using signals derived from petabytes of data.

From MarketWatch ● Nov. 15, 2025

But it’s a faltering microsecond that is a lifetime for me.

From "The Adoration of Jenna Fox" by Mary E. Pearson

Related Words

• blink of an eye
• millisecond
• nanosecond