Definition of hallucinogenic adjective from the Oxford Advanced Learner's Dictionary

 

hallucinogenic

 adjective
adjective
BrE BrE//həˌluːsɪnəˈdʒenɪk//
 
; NAmE NAmE//həˌluːsɪnəˈdʒenɪk//
 
 
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(of a drug or its effects) that affects people's minds and makes them see and hear things that are not really there hallucinogenic drugs/effects