: a semisynthetic illicit organic compound C20H25N3O derived from ergot that induces extreme sensory distortions, altered perceptions of reality, and intense emotional states, that may also produce delusions or paranoia, and that may sometimes cause panic reactions in response to the effects experienced

called also lysergic acid diethylamide

Examples of LSD in a Sentence

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In addition to the Boies case, the Drug Enforcement Administration has scheduled a hearing on the recommendation to reschedule marijuana from Schedule I, the same category as heroin and LSD, to Schedule III that same month. Will Yakowicz, Forbes, 6 Nov. 2024 The power and healing properties of psychedelics are now being examined for their therapeutic potential including the prosocial effects of MDMA, LSD and psilocybin. Photovogue, Vogue, 25 Sep. 2024 Since the 1960s and ’70s, when mushrooms and LSD were considered inseparable from the anti-war movement and hippie culture, psychedelic drugs have been culturally associated with the American left. Shayla Love, The Atlantic, 1 Nov. 2024 Related article Unforgettable photos of psychedelia and debauchery from the golden age of LSD In small clinical trials, synthetic versions of the psychedelic have shown benefits in tackling cluster headaches, anxiety, anorexia, obsessive-compulsive disorder and various forms of substance abuse. Sandee Lamotte, CNN, 22 Oct. 2024 See all Example Sentences for LSD 

Word History

Etymology

borrowed from German, from Lysergsäure-Diäthylamid "lysergic acid diethylamide"

First Known Use

1950, in the meaning defined above

Time Traveler
The first known use of LSD was in 1950

Dictionary Entries Near LSD

Cite this Entry

“LSD.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/LSD. Accessed 8 Dec. 2024.

Kids Definition

: an illegal drug that causes abnormal sensations, extreme and changeable states of emotion, unnatural changes in the way time and space are experienced, and hallucinations and that may sometimes cause panic in response to the effects experienced

Medical Definition

: a semisynthetic illicit organic compound C20H25N3O derived from ergot that induces extreme sensory distortions, altered perceptions of reality, and intense emotional states, that may also produce delusions or paranoia, and that may sometimes cause panic reactions in response to the effects experienced

called also acid, lysergic acid diethylamide, lysergide

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