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yoctosecond

 - 3 dictionary results

yoc⋅to⋅sec⋅ond

[yok-tuh-sek-uhnd]
–noun
one septillionth (10-24) of a second. Abbreviation: ysec, ys
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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yoc·to·sec·ond   (yŏk'tə-sěk'ənd)   
n.   Abbr. ys or ysec
One septillionth (10-24) of a second.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Main Entry:  yoctosecond
Part of Speech:  n
Definition:  one septillionth (10-24) of a second; abbr. ys, yser
Etymology:  1996-2001
Dictionary.com's 21st Century Lexicon
Copyright © 2003-2009 Dictionary.com, LLC
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