LSD1

1.
U.S. Navy. 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.
Origin
l(anding) s(hip) d(eck)

LSD2

1.
Pharmacology. 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.
Origin
< German Lysergsäure-Diäthylamid lysergic acid diethylamide

LSD3

1.
least significant digit.

L.S.D.

1.
pounds, shillings, and pence.
Also, £.s.d. l.s.d.
Origin
< Latin librae, solidī, dēnāriī
Examples from the web for LSD
  • They also revealed that at least one subject had died after administration of LSD.
  • He frequently used LSD, pills, and cannabis and was a heavy drinker.
British Dictionary definitions for LSD

LSD

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

L.S.D.

abbreviation (in Britain, esp formerly)
1.
librae, solidi, denarii
Word Origin
Latin: pounds, shillings, pence
Word Origin and History for LSD

"lysergic acid diethylamide," 1950, from German "Lysergsäure-diäthylamid" (abbreviated LSD in a Swiss journal from 1947). See lysergic. L.s.d. as the abbreviation of "pounds, shillings, and pence" is recorded from 1853.

l.s.d.

abbreviation of British currency units, from Latin librae, soldi, denarii, Roman equivalent of "pounds, shillings, pence."

LSD in Medicine

LSD (ěl'ěs-dē')
n.
Lysergic acid diethylamide; a crystalline compound derived from lysergic acid and used as a powerful hallucinogenic drug. Also called acid, lysergide.

LSD in Science
LSD
  (ěl'ěs-dē')   
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: C20H25N3O.
LSD in Culture

LSD definition


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.

Slang definitions & phrases for LSD

LSD

noun

Lysergic acid diethylamide, a hallucinogenic drug; acid: There is no rite of passage, such as smoking pot or tripping with LSD

[1960s+ Narcotics; found as a chemical abbreviation by 1947 in a Swiss journal]


Related Abbreviations for LSD

LSD

  1. least significant digit
  2. lysergic acid diethylamide

L.S.D.

pounds, shillings, and pence