[mith-ri-dey-tiz-uh m]


the production of immunity against the action of a poison by taking the poison in gradually increased doses.

Nearby words

  1. mithraicism,
  2. mithraism,
  3. mithras,
  4. mithridate,
  5. mithridates vi,
  6. mithridatize,
  7. mithril,
  8. miticide,
  9. mitigable,
  10. mitigant

Origin of mithridatism

1850–55; after Mithridates VI, said to have so immunized himself; see -ism

Related formsmith·ri·dat·ic [mith-ri-dat-ik] /ˌmɪθ rɪˈdæt ɪk/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for mithridatism



immunity to large doses of poison by prior ingestion of gradually increased doses
Derived Formsmithridatic (ˌmɪθrɪˈdætɪk, -ˈdeɪ-), adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for mithridatism




Tolerance or immunity to a poison acquired by taking gradually larger doses of it.
Related formsmith′ri•datic (-dătĭk) adj.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.