femtosecond

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femtosecond

noun femtoseconds

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

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noun unit of time, equal to 10−15 second

Español	femtosegundo
中文	飛秒 /飞秒 fēimiǎo, 毫微微秒 háowēiwēimiǎo
Français	femtoseconde

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MLA

"femtosecond." Wiktionary, via Micwyn, micwyn.com/word/femtosecond. Accessed 6 Nov. 2026.

APA

femtosecond. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/femtosecond

Chicago

"femtosecond." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/femtosecond.

BibTeX

@misc{femtosecond_2026,
  title = {femtosecond},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/femtosecond},
  urldate = {2026-11-06}
}