LSD
noun
: 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
Recent Examples on the Web
However, cannabis remains a Schedule I substance, lumped in with heroin and LSD — deemed to have no accepted medical use and a high potential for abuse.
—
Laura Hartman, The Orlando Sentinel, 12 June 2025
The voices in Brian’s head – and a resurrection
While bringing to life many of the band’s iconic songs, Wilson was also plunging deep into his personal hell, taking drugs including hashish, amphetamines and LSD.
—Christina Maxouris, CNN Money, 11 June 2025
Later, Leslie explores Lennon’s LSD and heroin abuse, his laziness and his violent outbursts.
—Stuart Miller, Oc Register, 10 June 2025
The suspect, whose name has not been released, was also arrested for possession of Class A drugs, a categorization that includes cocaine, crack, heroin, meth, ecstasy and LSD.
—Jami Ganz, New York Daily News, 3 June 2025
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Laura Hartman, The Orlando Sentinel, 12 June 2025
The voices in Brian’s head – and a resurrection
While bringing to life many of the band’s iconic songs, Wilson was also plunging deep into his personal hell, taking drugs including hashish, amphetamines and LSD.
—Christina Maxouris, CNN Money, 11 June 2025
Later, Leslie explores Lennon’s LSD and heroin abuse, his laziness and his violent outbursts.
—Stuart Miller, Oc Register, 10 June 2025
The suspect, whose name has not been released, was also arrested for possession of Class A drugs, a categorization that includes cocaine, crack, heroin, meth, ecstasy and LSD.
—Jami Ganz, New York Daily News, 3 June 2025
See All Example Sentences for LSD
Cite this Entry
“LSD.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/LSD. Accessed 18 Jun. 2025.
Copy CitationKids Definition
LSD
noun
: 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
LSD
noun
: 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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