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LD may refer to: In science and mathematics: *Lethal dose#, where "#" represents the percentage of test organisms killed by a specific dosage (of drugs, radiation, etc.), e.g. half will die at LD50 *The logarithm of base 2, , from the Latin ''logarithmus dualis'' *Lunar distance (astronomy), the distance between the Earth and the Moon and a measure of navigation *Linkage disequilibrium, when distinct alleles appear together more often than by chance (thanks to founder effects, etc.) in genetics *lactate dehydrogenase, an enzyme in plants and animals *London dispersion forces, weak intermolecular forces *Lateral dorsal nucleus of thalamus In technology: *Laser diode, semiconductor laser-emitting device *Laserdisc format, an obsolete optical disc video/data format and predecessor to Digital Video Disc (DVD) *ld (Unix), the linker command on Unix and Unix-like systems *Long distance, a telephone call to another area sufficiently far away to be charged at a higher rate *Loop Disconnect dialing *ld, an instruction on a Z80 CPU *Line Dubbed, a term for pirate copies with an audio track, which has been ripped from the line out connection of a projector *Ladder diagram (disambiguation), various meanings *Linz-Donawitz process, a widely used conversion process in steelmaking *Linked data, a method of publishing structured data so that it can be interlinked and become more useful In politics: *Liberal democracy, a form of government based on rule of the people (democracy) tempered by the rule of law and natural rights (liberalism) * A form of debate (Lincoln–Douglas debate) *Liberal Democrats, a UK political party In television: *Lorraine "L.D." Delacorte, a character from the ''Degrassi'' series played by Amanda Cook *Larry David, sometimes referred to as L.D. in the television show ''Curb Your Enthusiasm'' *Latin Disciples, the name of a gang in television series Day Break *Low-definition television (LDTV) In music: *Lil Dicky, American rapper *Little Doses, a Scottish alternative rock band *Luis Dubuc In contracts: * Liability Damage *Liquidated Damages, a figure in contract law LD can also refer to: *LD, the ISO 3166-2 code for Lakshadweep, India *LD, the code for Longford, Ireland *LD postcode area, also known as the Llandrindod Wells postcode area, in Wales *Learning disability, a condition that can impair learning through standard methods *Liberian dollar, the currency of Liberia *Libyan dinar, the currency of Libya *Liberty dollar (private currency), the private currency by norfed *Licensed Dietician *Light Dragoons, a British Army cavalry regiment *Lighting designer, the person in charge of lighting in theatre *Lincoln–Douglas debate, a form of debate *Line Drive, a trajectory-related inference and statistic of a batted ball in baseball *Lilian day, a variant of the Julian day *Air Hong Kong and Linea Turistica Aerotuy, airlines with IATA code LD *LD (cigarette), a brand of cigarette from the Gallaher Group *Living Dangerously, an ECW PPV *Listening device, used in covert investigations *Long distance relationships *Louis-Dreyfus Group, a French commodities trading firm *Lucid dreaming, a dream in which one is conscious of dreaming as it is happening *Ludum Dare a rapid game development competition *Lynsey Dyer, an American freeskier and Big Mountain skier Ld (Capital L with a lower case "d") is the abbreviated form of: *Lord, a peer of the realm in the United Kingdom *Lordi, a hard rock band 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「LD」の詳細全文を読む スポンサード リンク
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