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picosecond

[ pee-kuh-sek-uhnd, pahy- ]
/ ˈpi kəˌsɛk ənd, ˈpaɪ- /
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noun
one trillionth of a second. Abbreviation: ps, psec
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Origin of picosecond

First recorded in 1965–70; pico- + second2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

British Dictionary definitions for picosecond

picosecond
/ (ˈpiːkəʊˌsɛkənd, ˈpaɪkəʊ-) /

noun
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
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