petasecond

== English == === Etymology === From peta- + second. === Pronunciation === IPA(key): /ˈpɛ.təˌsɛk.ənd/ === Noun === petasecond (plural petaseconds) (metrology) An SI unit of time equal to 1015 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 ==== Translations ====