[sahy-ki-del-ik] 
| 1. | of or noting a mental state characterized by a profound sense of intensified sensory perception, sometimes accompanied by severe perceptual distortion and hallucinations and by extreme feelings of either euphoria or despair. |
| 2. | of, pertaining to, or noting any of various drugs producing this state, as LSD, mescaline, or psilocybin. |
| 3. | resembling, characteristic of, or reproducing images, sounds, or the like, experienced while in such a state: psychedelic painting. |
| 4. | a psychedelic drug. |
| 5. | a person who uses such a substance. |
| psy·che·del·ic (sī'kĭ-děl'ĭk) 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. [psyche1 + Greek dēloun, to make visible (from dēlos, clear, visible; see dyeu- in Indo-European roots) + -ic.] psy'che·del'i·cal·ly adv. |
A descriptive term for things that produce or are related to hallucinations, especially drugs such as LSD.
Note: Psychedelic art, most popular during the late 1960s and early 1970s, combines patterns, objects, light, and sound to simulate hallucinatory experiences.
psychedelic psy·che·del·ic (sī'kĭ-děl'ĭk)
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.
kɪˈdɛl