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picosecond

American  
[pee-kuh-sek-uhnd, pahy-] / ˈpi kəˌsɛk ənd, ˈpaɪ- /

noun

  1. one trillionth of a second. ps, psec


picosecond British  
/ ˈpiːkəʊˌsɛkənd, ˈpaɪkəʊ- /

noun

  1. a million millionth of a second; 10 –12 second

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of picosecond

First recorded in 1965–70; pico- + second 2

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

"Our results suggest that picosecond transport can provide access to microscopic properties of superconductors, including their gap symmetry, that are not directly available from conventional DC transport," says Andrea Cavalleri, who leads the research group.

From Science Daily ● Oct. 2, 2026

The strength of the change was comparable to forcing an object to emit a completely different color, while the transformation occurred on the picosecond scale -- one billionth of a billionth of a second.

From Science Daily ● Jul. 31, 2026

To improve efficacy and reduce complications from such laser treatment, an Osaka Metropolitan University-led research group has developed an index of the threshold energy density, known as fluence, and the dependent wavelength for picosecond lasers.

From Science Daily ● Mar. 27, 2024

“In every picosecond of time,” Zinner said, “the basal ganglia have to decide what is relevant, what not to block out so you can survive.”

From Seattle Times ● Apr. 12, 2018

It was a point of view that caused him to break ranks with the supercomputing nobility, who for decades focused on building machines that calculated at picosecond intervals.

From New York Times ● Dec. 16, 2009

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