from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. One millionth (10-6) of a second.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An SI unit of time equal to 10−6 seconds. It is commonly represented with symbol µs.

from The Century Dictionary and Cyclopedia

  • n. One millionth of a second: a unit employed in the measurement of exceedingly small intervals of time.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. one millionth (10^-6) of a second; one thousandth of a millisecond


from Wiktionary, Creative Commons Attribution/Share-Alike License

micro- +‎ second


  • Only a slight variation like a different hand placement for a microsecond might be the difference for any given scenario -- nothing more than that.

    Matthew Anderson: An Open Letter to the Captains

  • According to NASA, a complex computer model's preliminary calculation shows that Earth's days should have shortened by 1.26 microseconds (a microsecond is a one millionth of a second).

    CTV News RSS Feed

  • A microsecond is a unit of time equal to one millionth (10-6) of a second.

    PRWeb - Daily News Feed

  • A chip that stores light for a microsecond is a step towards optical computing

    The Economist: Correspondent's diary

  • Photocells capable of seeing things in a physical sense, advanced photography which can record what is seen or even what is not, thermionic tubes capable of controlling potent forces under the guidance of less power than a mosquito uses to vibrate his wings, cathode ray tubes rendering visible an occurrence so brief that by comparison a microsecond is a long time, relay combinations which will carry out involved sequences of movements more reliably than any human operator and thousands of times as fast — there are plenty of mechanical aids with which to effect a transformation in scientific records.

    As We May Think

  • In that microsecond there is no escape for you, no going back, no way to resolve the unresolved.

    Moment of Impact

  • It seems endemic in our culture that we tend to put off taking care of what's truly important, which includes living our life to the absolute fullest, enjoying every microsecond of today with those people who matter the most.

    Dennis Merritt Jones: Who or What Are You Taking for Granted?

  • In June, it also acquired U.S. online trader TradeStation Group for $411 million in the hopes of using its technology to gain an edge in the industry, where execution speed is becoming increasingly critical and every microsecond counts in order to ensure a timely trade.

    Japan's Monex Looks for Growth in China

  • "When decisions are being processed at the microsecond, it's significant," Mr. Quigley said.

    Wall Street to Link Up With Washington

  • Half of a thousandth of a second may not matter to some, but it can mean the difference between a profit and a loss to the many traders engaging in so-called high-frequency trading, which often measures time in the microsecond--one millionth of a second.

    Wall Street to Link Up With Washington


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  • 0,000 001 millionth of a second (" µs")

    May 17, 2008