psychedelia
movement, subculture, style or aesthetic that is resembled in the psychedelic subculture of the 1960s and the psychedelic experience produced by certain psychoactive substances
en-US/ˌsaɪkɪˈdiliə/
en-GB/ˌsaɪkɪˈdiːlɪə/
movement, subculture, style or aesthetic that is resembled in the psychedelic subculture of the 1960s and the psychedelic experience produced by certain psychoactive substances