| psychedelic | 1. Pertaining to a rather imprecise category of drugs with mainly central nervous system action, and with effects said to be the expansion or heightening of consciousness, e.g., LSD, hashish, mescaline. 2. A hallucinogenic substance, visual display, music, or other sensory stimulus having such action. Origin: psyche-+ G. Deloo, to manifest (05 Mar 2000) |
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| psychedelic drug | <pharmacology> A class of medications (for example LSD, marijuana, peyote, heroin, cocaine) that result in a distorted perception of reality. Often accompanied by hallucinations. (27 Sep 1997) |
| psychedelic therapy | Psychiatric therapy utilizing psychedelic drugs. (05 Mar 2000) |