Quectosecond

//ˈkwɛk.toʊˌsɛk.ənd// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    An SI unit of time equal to 10⁻³⁰ seconds. Symbol: qs

    "Holonyms: rontosecond < yoctosecond < zeptosecond < attosecond < femtosecond < picosecond < nanosecond < microsecond < millisecond < centisecond < decisecond < second < decasecond < minute < hectosecond < kilosecond < hour < week < megasecond < month < year < gigasecond < century < kiloannum, kiloyear, millennium < terasecond < mega-annum, megayear < petasecond < giga-annum, gigayear < exasecond < zettasecond < yottasecond < ronnasecond < quettasecond"

Example

More examples

"Holonyms: rontosecond < yoctosecond < zeptosecond < attosecond < femtosecond < picosecond < nanosecond < microsecond < millisecond < centisecond < decisecond < second < decasecond < minute < hectosecond < kilosecond < hour < week < megasecond < month < year < gigasecond < century < kiloannum, kiloyear, millennium < terasecond < mega-annum, megayear < petasecond < giga-annum, gigayear < exasecond < zettasecond < yottasecond < ronnasecond < quettasecond"

Etymology

From quecto- + second.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.