hectosecond

From hecto- +‎ second.

hectosecond (plural hectoseconds)

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

   Alternative form: hs (symbol)

   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

• The centisecond, decisecond, decasecond, and hectosecond are almost never used in science, and their names are rarely found outside dictionaries and word lists.