ronnasecond

== English == === Etymology === From ronna- +‎ second. === Noun === ronnasecond (plural ronnaseconds) (metrology) An SI unit of time equal to 1027 seconds. Symbol: Rs. (= quintillions of years, a hypothetical time span that is meaningless except in speculative contexts such as theoretical physics, philosophy, religion, and humorous hyperbole) Alternative form: Rs (symbol) Holonym: 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 < petasecond < giga-annum, gigayear < exasecond < zettasecond < yottasecond