Also found in: Thesaurus, Medical, Wikipedia.
An antidote against poison, especially a confection formerly held to be an antidote to all poisons.
[Medieval Latin mithridātum, alteration of Late Latin mithridātīum, from Latin, neuter of Mithridātīus, of Mithridates, from Greek mithridāteios, after Mithridates VIwho is said to have acquired tolerance for poison.]
(Alchemy) obsolete a substance believed to be an antidote to every poison and a cure for every disease
[C16: from Late Latin mithradatium, after Mithridates VI, alluding to his legendary immunity to poisons]
a medicinal preparation believed to contain an antidote to every poison.
[1520–30; derivative of Late Latin Mithridātēs Mithridates VI, said to have so immunized himself]