LD may refer to:

Arts and entertainment

* Lighting designer, a person in charge of lighting in theatre

Film and television

*Lorraine "L.D." Delacorte, a character on the TV series '' Degrassi'' * Larry David, sometimes referred to as L.D. on the television show ''

Curb Your Enthusiasm ''Curb Your Enthusiasm'' is an American television sitcom produced and broadcast by HBO since October 15, 2000, and created by Larry David, who stars as a semi-fictionalized version of himself. It follows David's life as a semi-retired televisio ...

'' *Latin Disciples, a fictional gang in television series ''

Day Break ''Day Break'' is a television program for which one 13-episode season was produced. The series starred Taye Diggs as Detective Brett Hopper, who is framed for the murder of Assistant District Attorney Alberto Garza. Due to a time loop, Hopper l ...

'' * Living Dangerously, an Extreme Champion Wrestling pay-per-view event (ECW PPV) *

Low-definition television Low-definition television (LDTV) refers to TV systems that have a lower screen resolution than standard-definition TV systems. The term is usually used in reference to digital TV, in particular when broadcasting at the same (or similar) resoluti ...

(LDTV) *"-LD", a United States call sign suffix signifying a low-power digital television station *

LaserDisc The LaserDisc (LD) is a home video format and the first commercial optical disc storage medium, initially licensed, sold and marketed as DiscoVision, MCA DiscoVision (also known simply as "DiscoVision") in the United States in 1978. Its diam ...

or MCA Discovision is a 12 inch Analog Video optical disc

Music

Lil Dicky David Andrew Burd (born March 15, 1988), better known by his stage name Lil Dicky, is an American rapper, comedian, and actor. He came to prominence with the release of the music video for his song "Ex-Boyfriend" in 2013, which became popular w ...

(born 1988), American rapper *

Little Doses Little Doses are a Scottish alternative rock band from Edinburgh, Scotland, who were formed in 2006. The band comprises lead vocalist Kirsten Ross, Mark McClelland on bass guitar, Michael Branagh on drums and backing vocals, Chris Alderson and ...

, a Scottish alternative rock band *

Luis Dubuc Luis Alberto Dubuc Jr. (born January 28, 1985) is an American DJ, musician, singer-songwriter, record producer and former drummer from Dallas, Texas. He was a member of The Secret Handshake and Of Legends. He is currently the man behind Myster ...

(born 1985), American musician *

LD (rapper) Cassiel Wuta-Ofei (born 9 April 1992), known professionally as LD or Scribz, is a British rapper. Named as the "godfather of UK drill" and as a founding member of the UK drill scene, LD would rise to fame in 2014 with the release of his debut si ...

, British rapper *

Lemon Demon Lemon Demon is a musical project and band created by American comedian and musician Neil Cicierega in 2003 in Boston, Massachusetts. Most Lemon Demon music is performed solely by Cicierega, who is the project's sole official member, but a fu ...

, American musical project and band

Businesses and organizations

* Air Hong Kong (IATA code LD) *

Light Dragoons The Light Dragoons (LD) is a cavalry regiment in the British Army. The regiment has a light cavalry role and specialises in mounted and dismounted reconnaissance. The Light Dragoons recruit mainly in Northern England, from the counties of Northu ...

, a British Army cavalry regiment *

Línea Turística Aereotuy Linea Turistica Aereotuy LTA, C.A. was a Venezuelan regional and domestic airline headquartered in Caracas and based at Simón Bolívar International Airport. History The airline was established in 1982 and started operations on June 30 of th ...

(IATA code LD) * Louis Dreyfus Company, a French commodities trading firm

Economics and finance

Contract law

* Liability damages *

Liquidated damages Liquidated damages, also referred to as liquidated and ascertained damages (LADs), are damages whose amount the parties designate during the formation of a contract for the injured party to collect as compensation upon a specific breach (e.g., late ...

Currencies

Liberian dollar The dollar (currency code ''LRD'') has been the currency of Liberia since 1943. It was also the country's currency between 1847 and 1907. It is normally abbreviated with the sign $, or alternatively L$ or LD$ to distinguish it from other dollar-d ...

, the currency of Liberia * Libyan dinar, the currency of Libya *

Liberty dollar (private currency) The American Liberty Dollar (ALD) was a private currency produced in the United States. The currency was issued in minted metal rounds (similar to coins), gold and silver certificates, and electronic currency (eLD). ALD certificates are "ware ...

, produced in the US

Products

LD (cigarette) LD (short for ''Liggett Ducat'', the name of the original manufacturer) is a Russian brand of cigarettes, currently owned by Japan Tobacco. In the United States, it is manufactured in Turkey for JT International U.S.A. History LD was first ...

, a brand of cigarette

Places

* LD postcode area, also known as the Llandrindod Wells postcode area, in Wales *

Lakshadweep Lakshadweep (), also known as Laccadives (), is a union territory of India. It is an archipelago of 36 islands in the Arabian sea, located off the Malabar Coast. The name ''Lakshadweep'' means "one lakh islands" in Sanskrit, though the Lac ...

, India (ISO 3166-2 code LD) *

County Longford County Longford ( gle, Contae an Longfoirt) is a county in Ireland. It is in the province of Leinster. It is named after the town of Longford. Longford County Council is the local authority for the county. The population of the county was 46,6 ...

, Ireland (code LD)

Politics

Liberal democracy Liberal democracy is the combination of a liberal political ideology that operates under an indirect democratic form of government. It is characterized by elections between multiple distinct political parties, a separation of powers into diff ...

, a form of government based on rule of the people (democracy) tempered by the rule of law and natural rights (liberalism) * Lincoln–Douglas debate, a form of debate *

Liberal Democrats (UK) The Liberal Democrats (commonly referred to as the Lib Dems) are a liberal political party in the United Kingdom. Since the 1992 general election, with the exception of the 2015 general election, they have been the third-largest UK political ...

, a UK political party *

Lord Lord is an appellation for a person or deity who has authority, control, or power over others, acting as a master, chief, or ruler. The appellation can also denote certain persons who hold a title of the peerage in the United Kingdom, or ar ...

, a peer of the realm in the United Kingdom

Science, technology, and mathematics

Astronomy

*Lilian day, a variant of the

Julian day The Julian day is the continuous count of days since the beginning of the Julian period, and is used primarily by astronomers, and in software for easily calculating elapsed days between two events (e.g. food production date and sell by date). ...

* Lunar distance (astronomy), the distance between the Earth and the Moon, used a general measure of distance

Biology and medicine

* Lactate dehydrogenase, an enzyme in plants and animals *

Lateral dorsal nucleus of thalamus The lateral dorsal nucleus is a nucleus of the thalamus The thalamus (from Greek θάλαμος, "chamber") is a large mass of gray matter located in the dorsal part of the diencephalon (a division of the forebrain). Nerve fibers project out ...

, an anatomic structure of the brain *

Learning disability Learning disability, learning disorder, or learning difficulty (British English) is a condition in the brain that causes difficulties comprehending or processing information and can be caused by several different factors. Given the "difficult ...

, a condition that can impair learning through standard methods * Lethal dose, an indication of the lethal toxicity of a given substance or type of radiation * Licensed

Dietitian A dietitian, medical dietitian, or dietician is an expert in identifying and treating disease-related malnutrition and in conducting medical nutrition therapy, for example designing an enteral tube feeding regimen or mitigating the effects of ca ...

* Linkage disequilibrium, in genetics, when alleles occur together more often than they would by chance *

Lucid dreaming A lucid dream is a type of dream in which the dreamer becomes aware that they are dreaming while dreaming. During a lucid dream, the dreamer may gain some amount of control over the dream characters, narrative, or environment; however, this is n ...

, a dream in which one is conscious of dreaming as it is happening

Electronics and computing

*ld, an instruction on a

Z80 The Z80 is an 8-bit microprocessor introduced by Zilog as the startup company's first product. The Z80 was conceived by Federico Faggin in late 1974 and developed by him and his 11 employees starting in early 1975. The first working samples were ...

CPU *

ld (Unix) In computing, a linker or link editor is a computer system program that takes one or more object files (generated by a compiler or an assembler) and combines them into a single executable file, library file, or another "object" file. A simple ...

, the linker command on Unix and Unix-like systems *

Laser diode file:Laser diode chip.jpg, The laser diode chip removed and placed on the eye of a needle for scale A laser diode (LD, also injection laser diode or ILD, or diode laser) is a semiconductor device similar to a light-emitting diode in which a di ...

, semiconductor laser-emitting device *

, an obsolete optical disc video/data format and predecessor to DVD * Levenshtein distance, a string metric for measuring the difference between two sequences. *Line Dubbed, a term for unlicensed copies of films with an audio track, which has been ripped from the line out connection of a projector *

Linked data In computing, linked data (often capitalized as Linked Data) is structured data which is interlinked with other data so it becomes more useful through semantic queries. It builds upon standard Web technologies such as HTTP, RDF and URIs, but r ...

, a method of publishing structured data so that it can be interlinked and become more useful * The 'Linked Document' in the NISO standard Content Profile/Linked Document, a data serialisation format * Listening device, used in covert investigations

Telecommunications

* Long-distance calling, a telephone call charged at a higher rate * Loop Disconnect dialing

Other

*''(chemistry)'' D/L nomenclature, used in naming chemical compounds *''(linguistics)'' Language Development, the changes that take place in language, speech & communication in the context of children's development * ''(manufacturing)'' Linz-Donawitz process, a widely-used process in

Basic oxygen steelmaking Basic oxygen steelmaking (BOS, BOP, BOF, or OSM), also known as Linz-Donawitz steelmaking or the oxygen converter processBrock and Elzinga, p. 50. is a method of primary steelmaking in which carbon-rich molten pig iron is made into steel. Blowing ...

*''(mathematics)''

Binary logarithm In mathematics, the binary logarithm () is the power to which the number must be raised to obtain the value . That is, for any real number , :x=\log_2 n \quad\Longleftrightarrow\quad 2^x=n. For example, the binary logarithm of is , the b ...

\mathrm(x)=\log_2(x)

, from the Latin ''logarithmus dualis'' *''(military)'' Laser designator, used by the military for targeting *''(physics)''

London dispersion force London dispersion forces (LDF, also known as dispersion forces, London forces, instantaneous dipole–induced dipole forces, fluctuating induced dipole bonds or loosely as van der Waals forces) are a type of intermolecular force acting between at ...

, weak intermolecular forces

Other uses

*''(communications)''

Lincoln–Douglas debate format Lincoln–Douglas debate (commonly abbreviated as LD Debate, or simply LD) is a type of one-on-one competitive debate practiced mainly in the United States at the high school level. It is sometimes also called values debate because the format tra ...

*''(sociology)''

Long-distance relationship A long-distance relationship (LDR) or long-distance romantic relationship (LDRR) is an intimate relationship between partners who are geographically separated from one another. Partners in LDRs face geographic separation and lack of face-to-face ...

*''(sports)'' Line drive, in baseball *''(sports)'' Ludum Dare, a game development competition