Word.ws English Dictionary

exasecond

exasecond noun: an SI unit of time equal to 10¹⁸ seconds. Symbol: Es. (= 31 709 800 000 years, which is more time than has elapsed in the Universe, that is, since the Big Bang [about 13 800 000 000 years].).

Noun

exasecond (plural exaseconds)

  1. An SI unit of time equal to 10¹⁸ seconds. Symbol: Es. (= 31 709 800 000 years, which is more time than has elapsed in the Universe, that is, since the Big Bang [about 13 800 000 000 years].)
    • Holonyms: zettasecond < yottasecond < ronnasecond < quettasecond
    • Meronyms: quectosecond < rontosecond < yoctosecond < zeptosecond < attosecond < femtosecond < picosecond < nanosecond < microsecond < millisecond < centisecond < decisecond < second < decasecond < minute < hectosecond < kilosecond < hour < day < week < megasecond < fortnight < month < year <...

Forms of exasecond

pluralexaseconds

Origin of exasecond

From exa- + second.

Questions about exasecond

What does exasecond mean?
Exasecond means an SI unit of time equal to 10¹⁸ seconds. Symbol: Es. (= 31 709 800 000 years, which is more time than has elapsed in the Universe, that is, since the Big Bang [about 13 800 000 000 years].).
What part of speech is exasecond?
Exasecond is a noun.
What is the plural of exasecond?
The plural of exasecond is exaseconds.

Words near exasecond in the dictionary

  1. exarticulates
  2. exarticulating
  3. exarticulation
  4. exarticulations
  5. exascale
  6. exasecond
  7. exaseconds
  8. exasperate
  9. exasperated
  10. exasperatedly
  11. exasperater

Source and license

Adapted from Wiktionary: exasecond (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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