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English definition of “hallucinogen”

hallucinogen

noun [C]     /ˌhæl.uːˈsɪn.ə.dʒən/ US  /həˈluː.sɪ.nə.dʒen/
a drug that makes people hallucinate: hallucinogens such as acid and ecstasySpecific types of drugDrugs - general wordsSpecific medicines and drugs
(Definition of hallucinogen noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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