mithridatic


mith·ri·da·tism

M0350700 (mĭth′rĭ-dā′tĭz′əm)n. Tolerance or immunity to a poison acquired by taking gradually larger doses of it.
[After Mithridates VIwho is said to have acquired tolerance for poison.]
mith′ri·dat′ic (-dăt′ĭk) adj.