psychedelic

psychedelic /psy·che·del·ic/ (si?ki-del´ik)

1. pertaining to or characterized by hallucinations, distortions of perception and awareness, and sometimes psychotic-like behavior.

2. a drug that produces such effects.

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psy·che·del·ic (sk-dlk)

adj.

Of, characterized by, or generating hallucinations, distortions of perception, altered states of awareness, and occasionally states resembling psychosis.

n.

A drug, such as LSD or mescaline, that produces such effects.

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psychedelic,

adj 1. pertaining to a mental state distinguished by the presence of hallucinations and an alteration in the sensation of perception. The affected person may also report feelings of fear or euphoria.
adj 2. pertaining to a specific substance or drug, such as mescaline; known to produce mood-altering effects.