yoctosecond

noun
yoc·​to·​sec·​ond | \ˈyäk-tə-ˌse-kənd, -kənt\

Definition of yoctosecond 

: one septillionth of a second

First Known Use of yoctosecond

1996, in the meaning defined above

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Dictionary Entries near yoctosecond

yock

yockernut

yocto-

yoctosecond

yod

yodel

yoga

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The first known use of yoctosecond was in 1996

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