1 yoctosecond | Definition of yoctosecond

yoctosecond

noun
yoc·​to·​sec·​ond | \ ˈyäk-tÉ™-ËŒse-kÉ™nd How to pronounce yoctosecond (audio) , -kÉ™nt\

Definition of yoctosecond

: one septillionth of a second

First Known Use of yoctosecond

1996, in the meaning defined above

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