Definition of "counterpoison" []

• A poison used against another poison, serving as an antidote. (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "He also asserts that no counterpoison is known and if this be true he confers a boon upon the Locustæ and"
• "He also asserts that no counterpoison is known and if this be true he confers a boon upon the Locustæ and Brinvilliers of modern Europe."
• "It is such a subtile and insinuating poison that it spreads universally, and infects the most precious ointments of the soul, and, as it were, poisons the very antidote and counterpoison."