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English definition of “psychedelic”

psychedelic

adjective     /ˌsaɪ.kəˈdel.ɪk/
(of a drug) causing effects on the mind, such as feelings of deep understanding or seeing strong images: psychedelic drugsSpecific types of drugDrugs - general wordsSpecific medicines and drugs Psychedelic art or clothing has bright colours and strange patterns of a type that might be experienced by taking psychedelic drugs.The qualities of colourMonochrome and multi-coloured
(Definition of psychedelic adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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