Ronnasecond
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 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)
"Holonym: quettasecond"
Example
More examples"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"
Etymology
From ronna- + second.
More for "ronnasecond"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.