Noun
An antidote against poison, or a composition in form of an electuary, supposed to serve either as a remedy or a preservative against poison; an alexipharmic; -- so called from King Mithridates, its reputed inventor.
Source: Webster's dictionaryThe major roles in Racinian tragedy The king (Pyrrhus, Néron, Titus, Mithridate, Agamemnon, Thésée) holds the power of life and death over the other characters. Source: Internet