veisalgia n.— «In a 2000 journal article, Wiese and co-authors coined a term for such hangovers: veisalgia, from the Norwegian word kveis, meaning “uneasiness following debauchery,” and algia, Greek for pain.» —“Hangover...
femtosecond n. 10 to the -15th power or 0.000000000000001 second, equalling a quadrillionth of a second or 0.3 light microns. Editorial Note: Commonly used in measurement of light in laser or light-related technologies. Etymological Note: Danish or...