Word.ws English Dictionary

femtoseconds

femtoseconds is the plural of femtosecond.

Meaning of femtosecond

Noun

femtosecond (plural femtoseconds)

  1. An SI unit of time equal to 10⁻¹⁵ seconds. Symbol: fs
    • Holonyms: picosecond < nanosecond < microsecond < millisecond < centisecond < decisecond < second < decasecond < minute < hectosecond < kilosecond < hour < day < week < megasecond < fortnight < month < year < gigasecond < century < kiloannum, kiloyear, millennium < terasecond < mega-annum, megayear...

Questions about femtoseconds

What is femtoseconds the plural of?
Femtoseconds is the plural of femtosecond.

Words near femtoseconds in the dictionary

  1. femtosatellites
  2. femtoscale
  3. femtoscopic
  4. femtoscopy
  5. femtosecond
  6. femtoseconds
  7. femtosiemens
  8. femtotechnological
  9. femtotechnologies
  10. femtotechnology
  11. femtotesla

Source and license

Adapted from Wiktionary: femtoseconds (page history and authors); femtosecond (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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