femtosecond

noun

1. An SI unit of time equal to 10⁻¹⁵ seconds. Symbol: fs

   “Holonyms: 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 < ronnasecond < quettasecond”

   “Meronyms: quectosecond < rontosecond < yoctosecond < zeptosecond < attosecond”

   “Sheldon Cooper: My hair is growing at the rate of 4.6 yoctometers per femtosecond.”

   “The observation and manipulation of electron dynamics in matter call for attosecond light pulses, routinely available from high-order harmonic generation driven by few-femtosecond lasers.”

   “Hxh son all day any week and any hour any minute any second, any millisecond, any microsecond, any nanosecond any picosecond any femtosecond, any attosecond, any zeptosecond, any yoctosecond, any rontosecond, any quectosecond”