1

psychedelic

noun psy·che·del·ic \ ˌsī-kə-ˈde-lik \
Updated on: 8 Dec 2017

Definition of psychedelic

: a psychedelic drug (such as LSD)

Recent Examples of psychedelic from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'psychedelic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Did You Know?

The most famous--or notorious--of the psychedelic drugs is LSD, a compound that can be obtained from various mushrooms and other fungi but is usually created in the lab. The other well-known psychedelics are psilocybin (likewise obtained from fungi) and mescaline (obtained from peyote cactus). How psychedelics produce their effects is still fairly mysterious, partly because research ceased for almost 20 years because of their reputation, but scientists are determined to find the answers and much research is now under way. Psychedelics are now used to treat anxiety in patients with cancer, and are being tested in the treatment of such serious conditions as severe depression, alcoholism, and drug addiction.

Origin and Etymology of psychedelic

irregular from psych- + Greek dēloun to show, from dēlos evident; akin to Sanskrit dīdeti it shines, Latin dies day — more at deity


2

psychedelic

adjective

Definition of psychedelic

1 a : of, relating to, or being drugs (such as LSD) capable of producing abnormal psychic effects (such as hallucinations) and sometimes psychotic states
b : produced by or associated with the use of psychedelic drugs
  • a psychedelic experience
2 : imitating, suggestive of, or reproducing effects (such as distorted or bizarre images or sounds) resembling those produced by psychedelic drugs
  • psychedelic color schemes
3 : of, relating to, characteristic of, or being the period of the mid- to late-1960's that is associated with the psychedelic drug culture
  • psychedelic rock
  • the psychedelic era/movement
  • … the "rainbow newspaper" of San Francisco that burst onto the psychedelic scene in 1966 …
  • — Don Lattin
  • … speaking of stereotypes, the illustrations reject any hint of a '60s psychedelic style …
  • —Steven Heller

psychedelically

play \ˌsī-kə-ˈde-li-k(ə-)lē\ adverb

Recent Examples of psychedelic from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'psychedelic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of psychedelic

1957


PSYCHEDELIC Defined for English Language Learners

psychedelic

noun

Definition of psychedelic for English Language Learners

  • : a psychedelic drug (such as LSD)


psychedelic

adjective

Definition of psychedelic for English Language Learners

  • —used to describe a drug (such as LSD) that affects your thinking and causes you to see things that are not real

  • : caused by the use of psychedelic drugs

  • : suggesting the effects of psychedelic drugs by having bright colors, strange sounds, etc.


Medical Dictionary

1

psychedelic

noun psy·che·del·ic \ ˌsī-kə-ˈdel-ik \

medical Definition of psychedelic

: a psychedelic drug (as LSD)

2

psychedelic

adjective

medical Definition of psychedelic

1 : of, relating to, or being drugs (as LSD) capable of producing abnormal psychic effects (as hallucinations) and sometimes psychotic states
2 : produced by or associated with the use of psychedelic drugs
  • a psychedelic experience

psychedelically

play \-ˈdel-i-k(ə-)lē\ adverb


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