LSD (disambiguation)

LSD is an initialism for lysergic acid diethylamide, a psychedelic drug.

The initialism may also refer to:

Science and technology

Laser Schlieren Deflectometry, a physical method for temperature measurement
Limit state design, a design methodology used in structural engineering
Limited slip differential, a type of automobile differential
Line sharing device or modem sharing device
Log-spectral distance or log-spectral distortion
Longshore drift, a geological process by which sediments move along a beach shore
Low self-discharge NiMH battery, a type of rechargeable battery
Low sulfur diesel, a diesel standard that preceded ultra-low sulfur diesel
Lysosomal storage disease, a class of disorders caused by inborn errors of metabolism
Least significant difference, a post-hoc test
Linear slot diffuser, a control device in a HVAC engineering diffuser
Language for Systems Development, a system programming language developed at Brown University
Lean software development, a collection of principles to improve efficiency in IT projects
Least significant digit
Limiting spectral distribution, a concept from random matrix theory
Lumpy skin disease, a disease caused by a virus, which infects mainly cattle and buffalos

LSD (The Pretty Things song) 1966 single
"LSD", song by Hawkwind from Electric Tepee
"LSD" (ASAP Rocky song), stylized "L$D"; abbreviation for "Love, Sex, Dreams", 2015 song by A$AP Rocky
"Lucy in the Sky with Diamonds", a 1967 Beatles song; sometimes assumed derivation of LSD
"Lake Shore Drive" (song), the title track from the album

Dock landing ship (designated LSD for "landing ship, dock" by the US Navy), an amphibious warfare support ship, often equipped with a well dock

League of Social Democrats, a political party in Hong Kong
League for Spiritual Discovery, a spiritual organization founded by Timothy Leary
Local service district, a unit of municipal government in the Canadian provinces of Newfoundland and Labrador (NL) and of New Brunswick (NB).
Louisiana School for the Deaf, a school in Baton Rouge for the deaf and hard-of-hearing

Lake Shore Drive, a road in Chicago, U.S. Route 41
Karolina Dean, also known as Lucy in the Sky with Diamonds or L.S.D., a fictional character in the Marvel Comics series, Runaways
LSD (video game), a 1998 Japanese video game
£sd (abbreviation of "librae, solidi, denarii"), a pre-decimal currency of the UK and elsewhere
Spike Dudley (born 1970) or Little Spike Dudley (Matt Hyson), American professional wrestler
Long slow distance, a form of aerobic endurance training in running and cycling
Legal subdivision, a unit of land according to the Dominion Land Survey of Western Canada