Definitions

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

  • n. A substance that induces hallucination.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any substance tending to induce hallucination

from the GNU version of the Collaborative International Dictionary of English

  • n. A substance capable of producing hallucinations when ingested; a hallucinogenic substance.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a psychoactive drug that induces hallucinations or altered sensory experiences

Etymologies

hallucin(ation) + -gen.
(American Heritage® Dictionary of the English Language, Fourth Edition)
hallucination + -o- ("(interconsonantal)") + -gen ("producer"). (Wiktionary)

Examples

  • Niopo turned out to be a snuff derived from Anadenthera peregrina, a tree of the open grasslands first described as a hallucinogen by Humboldt.

    One River

  • It appeared the hallucinogen, which is sometimes known on the street as "Europa" and has no approved medical use, was legally ordered over the Internet for a spring break party, said Anoka County Sheriff Commander Paul Sommer.

    msnbc.com: Top msnbc.com headlines

  • All the evidence agrees with anthropological research which traces the development of the sense of the sacred, and therefore the birth of religion, to the use of a hallucinogen, which is often a mushroom (the Mexican Psilocybe; the Amanita Muscaria of the Hyperboreans, ancestors of the Europeans; the Soma of the Veda Indians; the Ergot of the Mysteries of Eleusis; the Boletus of the Kuma).

    cafebabel.com

  •             “Maybe if you're on some kind of hallucinogen,” he replied.

    Whites in Hot Water

  • < P class = MsoNormal style = "MARGIN: 0in 0in 0pt; LINE-HEIGHT: 200%; tab-stops:. 5in" > “Maybe if you're on some kind of hallucinogen,” he replied.

    Whites in Hot Water

  • What kind of hallucinogen are they putting in the water over at NSA, anyway?

    Archive 2005-01-01

  • I quickly turn my attention back to the box to check the ingredient list for some sort of hallucinogen which is about the only way that they could substantiate their claim to stimulate all five of my senses.

    Entertainment magazine The Cheers

  • A hallucinogen is a drug ... "capable of inducing illusions, hallucinations, delusions, paranoid ideations, and other alterations of mood and thinking.

    Citizendium, the Citizens' Compendium - Recent changes [en]

  • A '' 'hallucinogen' '' is a drug ... "capable of inducing illusions, hallucinations, delusions, paranoid ideations, and other alterations of mood and thinking.

    Citizendium, the Citizens' Compendium - Recent changes [en]

  • "It's a real drug called Ibogaine, a hallucinogen that's used to treat opiate addiction," Clarke explains.

    Nikita's Melinda Clarke: Fans Want Amanda to Be Truly Evil

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