Simple Definition of hallucinogen
: a substance (such as a drug) that causes people to see or sense things that are not real : a substance that causes hallucinations
Origin of hallucinogen
hallucination + -o- + -gen
First Known Use: 1954
Medical Definition of hallucinogen
: a substance and especially a drug that induces hallucinations
Learn More about hallucinogen
Medical Dictionary: Definition of "hallucinogen" Spanish Central: Translation of "hallucinogen" Nglish: Translation of "hallucinogen" for Spanish speakers Britannica.com: Encyclopedia article about "hallucinogen"
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