Standard Lemma guide

hectosecond

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

(metrology) An SI unit of time equal to 102 seconds. Symbol: hs. (= 00:01:40 = 1.666̄̄ minutes)

Definition source: English Wiktionary via Wiktextract

Usage: rare

Examples

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

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From hecto- + second.

Across languages

Translations

3 source translations are retained for this English entry.

  • Dutch: hectoseconde — unit of time equal to 100 seconds
  • Finnish: hehtosekunti — unit of time equal to 100 seconds
  • Slovak: hektosekunda — unit of time equal to 100 seconds