from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Producing poison or toxic substances.
  • adj. Derived from or containing toxic matter.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. that produces poison

from the GNU version of the Collaborative International Dictionary of English

  • adj. Producing toxic products.

from The Century Dictionary and Cyclopedia

  • Forming poison.


from Wiktionary, Creative Commons Attribution/Share-Alike License

toxico- + -genic


  • They concluded that toxicogenic theory fails all these criteria, with there being “no convincing evidence to support the fundamental postulate that IEI has a toxic aetiology” and that “the hypothesised biological processes and mechanisms are implausible”.8 Moreover, they also concluded that “psychogenic theory meets all of the criteria directly or indirectly”, being “characterised by a progressive research programme including double-blind, placebo-controlled provocation challenge studies”.

    The Volokh Conspiracy » Professors and Intelligent Design:


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