(of drugs 药物 causing the user to see and hear things that are not there or that do not exist (= to hallucinate 引起幻觉的；使人精神恍惚的 (of art, music, clothes, etc. 艺术、音乐、服装等 having bright colours, strange sounds, etc. like those that are experienced when taking psychedelic drugs 产生迷幻效果的
Word Origin1950s: formed irregularly from psyche + Greek dēlos ‘clear, manifest’ + -ic.