PSYCHEDELIC

adj. & n. --adj. 1 a expanding the mind's awareness etc., esp. through the use of hallucinogenic drugs. b (of an experience) hallucinatory; bizarre. c (of a drug) producing hallucinations. 2 colloq. a producing an effect resembling that of a psychedelic drug; having vivid colours or designs etc. b (of colours, patterns, etc.) bright, bold and often abstract. --n. a hallucinogenic drug. øøpsychedelically adv. [irreg. f. Gk (as PSYCHE, delos clear, manifest)]