Dictionary.com

picosecond

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

noun

one trillionth of a second. Abbreviation: ps, psec

QUIZZES

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In our third teacher-created PSAT practice test there are new and unique vocabulary terms you may have never heard of! Can you guess what they mean?
Question 1 of 10
seclusion
a false belief or opinion.
the matter that settles to the bottom of a liquid.
the state of being isolated, kept apart, or withdrawn into solitude.
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Origin of picosecond

First recorded in 1965–70; pico- + second2

Words nearby picosecond

picometer, picong, Pico Rivera, Picornaviridae, picornavirus, picosecond, picot, picotee, picot stitch, picowave, picquet
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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