yoctosecond
noun
yoctosecond is spelled Y-O-C-T-O-S-E-C-O-N-D: 11 letters. As a noun, yoctosecond means “An SI unit of time equal to 10⁻²⁴ seconds. Symbol: ys” (English Wiktionary, September 2026). The plural of yoctosecond is yoctoseconds.
How many letters and syllables are in yoctosecond?
| Letters | 11: Y-O-C-T-O-S-E-C-O-N-D |
|---|---|
| In writing | too rare for the frequency list |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Forms of yoctosecond
- yoctoseconds plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does yoctosecond mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 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
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does yoctosecond come from?
From yocto- + second.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).