LSD

¹ American  

abbreviation

Pharmacology.

1. a crystalline solid, C 20 H 25 N 3 O, the diethyl amide of lysergic acid, a powerful psychedelic drug that produces temporary hallucinations and a schizophrenic psychotic state.

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LSD ² American  

abbreviation

1. least significant digit.

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LSD ³ American  

abbreviation

U.S. Navy.

plural

LSDs

1. a seagoing, amphibious ship capable of carrying and launching assault landing craft from a large, inner compartment that can be flooded, and of making emergency repairs at sea to smaller ships.

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L.S.D. ⁴ American  

Or £.s.d.,

abbreviation

1. pounds, shillings, and pence.

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LSD ¹ British  

noun

1. Informal name (as an illegal hallucinogen): acid.  lysergic acid diethylamide; a crystalline compound prepared from lysergic acid, used in experimental medicine and taken illegally as a hallucinogenic drug

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L.S.D. ² British  

abbreviation

1. librae, solidi, denarii

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LSD Scientific  

/ ĕl′ĕs-dē′ /

1. Short for lysergic acid diethylamide. A crystalline compound that is a synthetic derivative of lysergic acid. It is used as a powerful hallucinogenic drug. Chemical formula: C ₂₀ H ₂₅ N ₃ O.

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LSD Cultural  

1. A drug, lysergic acid diethylamide, that produces hallucinations similar to those of a psychosis. Persons on LSD “trips,” which may last for many hours, undergo distortions of their perceptions of space and time and may lose all contact with reality.

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Etymology

Origin of LSD¹

First recorded in 1945–50; abbreviaion of German Lysergsäure-Diäthylamid “lysergic acid diethylamide”

Origin of LSD¹

First recorded in 1940–45; abbreviation of l(anding), s(hip), d(ock)

Origin of L.S.D.¹

From Latin lībrae “pounds (sterling),” libra ¹ ( def. ), pound ² ( def. ); solidī , solidus ¹ ( def. ); dēnāriī denarius ( def. )

Example Sentences

The main dining room and its mezzanine, seating 300, and the rooftop bar and restaurant, with another 150 seats, specialize in unusual dumplings and what Mr. Morfogen calls L.S.D.: lobster, steak and Peking duck.

From New York Times

The ride here is a wild one: Set in 1969, “Once Upon a Time … in Hollywood” casts Leonardo DiCaprio and Pitt as an over-the-hill Hollywood actor and his stunt double, with a plot that involves career problems, L.S.D. and Charles Manson.

From New York Times

Manifestos were written and the general tenor of the Northern California dream was built upon the sense that technology could open the doors of perception, allowing us to see parallel versions of our reality, not unlike what those who had experimented with L.S.D. in the nineteen-sixties and seventies came to believe.

From The New Yorker

L.S.D., libr�, solidi, denarii=Pounds, shillings, pence.

From Project Gutenberg

Marijuana is currently classified by the federal government as a Schedule I controlled substance, the same category as heroin and L.S.D.

From New York Times