a crystalline solid, C20H25N3O, the diethyl amide of lysergic acid, a powerful psychedelic drug that produces temporary hallucinations and a schizophrenic psychotic state.
SHALL WE PLAY A "SHALL" VS. "SHOULD" CHALLENGE?
Should you take this quiz on “shall” versus “should”? It should prove to be a quick challenge!
Question 1 of 6
Which form is used to state an obligation or duty someone has?
Origin of LSD1
First recorded in 1945–50; abbreviaion of German Lysergsäure-Diäthylamid “lysergic acid diethylamide”
Words nearby LSD
, L-shaped curve
, L sill
Other definitions for LSD (2 of 4)
abbreviation; noun, plural LSDsU.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 of LSD2
First recorded in 1940–45; abbreviation of l(anding), s(hip), d(ock)
Other definitions for LSD (3 of 4)
Other definitions for LSD (4 of 4)
pounds, shillings, and pence.
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use LSD in a sentence
But with LSD, because it was countercultural, and because it was used as an experimental drug, it was not marketed properly.
It is common to have a bad psychological reaction to LSD, mescaline, and psilocybin.
Lysergic acid (LSD), mescaline, and psilocybin cause illusions and hallucinations.
British Dictionary definitions for LSD (1 of 2)
lysergic acid diethylamide; a crystalline compound prepared from lysergic acid, used in experimental medicine and taken illegally as a hallucinogenic drugInformal name (as an illegal hallucinogen): acid
British Dictionary definitions for LSD (2 of 2)
abbreviation for (in Britain, esp formerly)
Word Origin for L.S.D.
Latin: pounds, shillings, pence
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for LSD
Lysergic acid diethylamide; a crystalline compound derived from lysergic acid and used as a powerful hallucinogenic drug.acid lysergide
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for LSD
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.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for LSD
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.
The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.