petasecondとは 意味・読み方・使い方

発音

• IPA: /ˈpɛ.təˌsɛk.ənd/

名詞

petasecond (plural petaseconds)

1. (metrology) An SI unit of time equal to 10 seconds. Symbol: Ps. (= 31 709 800 years)

   Alternative form: Ps (symbol)

   Holonyms: giga-annum, gigayear < exasecond < 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 < gigasecond < century < kiloannum, kiloyear, millennium < terasecond < mega-annum, megayear