1) Psychedelic 
A property of a drug or chemical which produces hallucinations or other bizarre aberrations in mental functioning. ... Synonym: hallucinogenic. ... (05 Mar 2000) ... 
psychedelic, psychodelic 1. Originally used in 1963 to mean mind-manifesting and now used by lay persons to describe some of the subjective aspects of intoxication, particularly with a drug; such as, lysergic acid diethylamide (LSD) or other drugs (hashish, mescaline, etc.) that are mind-altering and produce visual hallucinations. 2. Producing an ...
psychedelic.