psychedelic

From Ancient Greek ψυχή (psukhḗ, “mind, soul”) + δῆλος (dêlos, “manifest, visible”) + English -ic

• IPA^(key): /ˈsaɪ.kəˌdɛl.ɪk/, /ˈsaɪ.kɪˌdɛl.ɪk/ (UK)
• enPR: sī'kĭ-děl'ĭk (US)

psychedelic (comparative more psychedelic, superlative most psychedelic)

1. Of, containing, generating, or reminiscent of drug-induced hallucinations, distortions of perception, altered awareness etc.
2. (of graphics, etc.) Having bright colours, abstract shapes, etc. reminiscent of drug-induced hallucinations or distortions of perception.

• (of hallucinations): lysergic, trippy
• (having bright colours): multi-coloured

psychedelic (plural psychedelics)

1. Any psychoactive substance (such as LSD or psilocybin) which, when consumed, causes perceptual changes (sometimes erratic and uncontrollable), visual hallucination, and altered awareness of the body and mind.

psychedelic

1. (hippie slang) awesome, cool, groovy

• psychedelia