WordReference Random House Unabridged Dictionary of American English © 2026
mith•ri•date
(mith′ri dāt′),USA pronunciation n. Old Pharm.
- Drugsa confection believed to contain an antidote to every poison.
- Medieval Latin, variant of Late Latin mithridātium, noun, nominal use of neuter of Mithridātius, equivalent. to Mithridāt(ēs) Mithridates VI (see mithridatism) + -ius -ious
- earlier mithridatum 1520–30