LSD

¹

abbreviation for

, 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.

LSD

²

abbreviation for

, 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.

LSD

³

abbreviation for

1. least significant digit ( def ).

L.S.D.

⁴

or £.s.d., l.s.d.

abbreviation for

1. pounds, shillings, and pence.

L.S.D.

¹

abbreviation for

1. librae, solidi, denarii

LSD

²

noun

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

LSD

/ 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.

LSD

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.

Word History and Origins

Origin of LSD¹

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

Origin of LSD²

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

Origin of LSD³

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

Word History and Origins

Origin of LSD¹

Latin: pounds, shillings, pence

Example Sentences

As the theater collective’s principal playwright from 1967 to 2000, she largely trafficked in satire, collaborating on loose-limbed lampoons and melodramas like “Ripped Van Winkle,” about a 1960s hippie who conks out for decades after a monster L.S.D. trip and awakens to find himself trapped in a nightmare of yuppie greed and materialism in the 1980s.

From New York Times

It excludes synthetic drugs like L.S.D. and MDMA, which are commonly used recreationally.

From New York Times

By comparison, Schedule I includes heroin and L.S.D.

From New York Times

Some at Fox mocked Mr. Trump and his lawyers as “crazy” and under the influence of drugs like L.S.D. and magic mushrooms.

From New York Times

Lewis, and he vacillated between futures at Yale Law School and the Iowa Writers’ Workshop while he made L.S.D. in Mexico and continued to use drugs.

From New York Times