Word.ws English Dictionary

yoctosecond

yoctosecond noun: an SI unit of time equal to 10⁻²⁴ seconds. Symbol: ys.

Noun

yoctosecond (plural yoctoseconds)

  1. An SI unit of time equal to 10⁻²⁴ seconds. Symbol: ys
    • Holonyms: zeptosecond < attosecond < femtosecond < picosecond < nanosecond < microsecond < millisecond < centisecond < decisecond < second < decasecond < minute < hectosecond < kilosecond < hour < day < week < megasecond < fortnight < month < year < gigasecond < century < kiloannum, kiloyear...
    • Meronyms: quectosecond < rontosecond

Forms of yoctosecond

pluralyoctoseconds

Origin of yoctosecond

From yocto- + second.

Questions about yoctosecond

What does yoctosecond mean?
Yoctosecond means an SI unit of time equal to 10⁻²⁴ seconds. Symbol: ys.
What part of speech is yoctosecond?
Yoctosecond is a noun.
What is the plural of yoctosecond?
The plural of yoctosecond is yoctoseconds.

Words near yoctosecond in the dictionary

  1. yoctometers
  2. yoctometre
  3. yoctometres
  4. yoctomole
  5. yoctonewton
  6. yoctosecond
  7. yoctoseconds
  8. Yocum
  9. Yocums
  10. yod
  11. yod coalescence

Source and license

Adapted from Wiktionary: yoctosecond (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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