yoctosecond

noun
yoc·​to·​sec·​ond | \ ˈyäk-tə-ˌse-kənd How to pronounce yoctosecond (audio) , -kənt \

Definition of yoctosecond

: one septillionth of a second

First Known Use of yoctosecond

1996, in the meaning defined above

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The first known use of yoctosecond was in 1996

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Cite this Entry

“Yoctosecond.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/yoctosecond. Accessed 10 Aug. 2020.

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