LSD is the abbreviation for the hallucinogenic drug lysergic acid diethylamide. LSD may also mean: In science and technology:

LE2 Slew Dem, a Leicester crew

Low sexual desire, see sexual dysfunction

Least Significant Digit

Lucy in the Sky with Diamonds, a Beatles song

Limited slip differential, a type of differential in automobiles

Low Sulfur Diesel, a predecessor to Ultra-low sulfur diesel (ULSD), a fuel standard

Lake Shore Drive, a famous road in Chicago

Little Spike Dudley (Matt Hyson), a professional wrestler

Light-Sensitive Diode (Photodiode), a diode that releases its charge when it detects light

Limit state design, a design methodology used in structural engineering

Layered Specification Document, a hierarchical set of engineering specifications that collectively describe a system from top down.

Longshore drift, a process by which sediments move along the shore's beach

Long Slow Distance, a training method used by long distance runners who eschew fast, short runs in favor of slower but longer runs

"L.S.D.", a song by Hawkwind from their 1993 album Electric Tepee

Laser Servo Drive

Laser Servo Diskette

£sd or "L.s.d.", for Librae, solidi, denarii (pounds, shillings, pence), the popular name for the pre-decimal currencies of the UK and other countries

Left Spine Down, an iPunk band (industrial, punk, drum and bass)

LSD is a video game released in Japan in 1998.

League of Social Democrats, a Hong Kong pro-democratic political group

Love's Secret Domain, an album by Coil released in 1991

Liquid Sound Design, a UK electronic music record label

Lysosomal storage disease

Dock Landing Ship (US Navy hull classification: LSD), amphibious assault ships

Lumpy Skin Disease

Life, Sex & Death, a rock band

LDS is a three-letter acronym that can refer to: Latter Day Saint, any person who identifies with the religious Latter Day Saint movement. Latter-day Saint, a member of The Church of Jesus Christ of Latter-day Saints (also known as the Mormon church or...

Line Sharing Device, also known as a Modem Sharing Device, a device allowing multiple inputs to a serial connection

Love Sensuality Devotion: The Greatest Hits and Love Sensuality Devotion: The Remix Collection, a set of compilation albums from Enigma

League for Spiritual Discovery, a religious cult centered around LSD founded by Timothy Leary

Lorenzo St. Dubois, Dick Shawn's character in the Mel Brooks film, The Producers

LSD Motor Car, a 3 wheeler car made in Huddersfield and Linthwaite between 1919 and 1924 by Messrs Longbottom, Sykes and Dyson. An example is in the Tolson Museum, Huddersfield.

Louisiana School for the Deaf, a Baton Rouge school for the deaf and hard-of-hearing