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LR or Lr may refer to:


Businesses and organizations

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Avianca Costa Rica Avianca Costa Rica S.A., using callsign as LACSA (''Spanish: Lineas Aéreas Costarricenses S.A.''), minority owned by the Synergy Group, is the national airline of Costa Rica and is based in San José. It operates international scheduled servic ...
, an airline, IATA airline code LR *
Lenoir–Rhyne University Lenoir–Rhyne University is a private Lutheran university in Hickory, North Carolina. It was founded in 1891 and is affiliated with the North Carolina Synod of the Evangelical Lutheran Church in America (ELCA). Academics The university is acc ...
in Hickory, North Carolina * Lenong Regiment, an infantry regiment of the South African Army *
The Republicans (France) The Republicans (, ; LR) is a liberal-conservative List of political parties in France, political party in France, largely inspired by the tradition of Gaullism. The party was formed in 2015 as the refoundation of the Union for a Popular Movem ...
(''Les Républicains''), a political party in France *
Lloyd's Register Lloyd's Register Group Limited, trading as Lloyd's Register (LR), is a technical and professional services organisation and a maritime classification society, wholly owned by the Lloyd’s Register Foundation, a UK charity dedicated to research ...
, a technical and business services organisation and a maritime classification society


Places

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Lithuania Lithuania, officially the Republic of Lithuania, is a country in the Baltic region of Europe. It is one of three Baltic states and lies on the eastern shore of the Baltic Sea, bordered by Latvia to the north, Belarus to the east and south, P ...
(''Lietuvos Respublika, LR'') *
Liberia Liberia, officially the Republic of Liberia, is a country on the West African coast. It is bordered by Sierra Leone to Liberia–Sierra Leone border, its northwest, Guinea to Guinea–Liberia border, its north, Ivory Coast to Ivory Coast–Lib ...
(ISO 3166-1 alpha-2 country code LR) ** .lr, the Internet country code top-level domain for Liberia *
Little Rock, Arkansas Little Rock is the List of capitals in the United States, capital and List of municipalities in Arkansas, most populous city of the U.S. state of Arkansas. The city's population was 202,591 as of the 2020 census. The six-county Central Arkan ...
, United States


Science, technology and mathematics

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LR parser In computer science, LR parsers are a type of bottom-up parsing, bottom-up parser that analyse deterministic context-free languages in linear time. There are several variants of LR parsers: SLR parsers, LALR parsers, canonical LR parser, canonica ...
, a type of parser in computer science *
Lexical resource In digital lexicography, natural language processing, and digital humanities, a lexical resource is a language resource consisting of data regarding the lexemes of the lexicon of one or more languages e.g., in the form of a database. Characteris ...
, a database consisting of one or several dictionaries *
Link register A link register (LR for short) is a register which holds the address to return to when a subroutine call completes. This is more efficient than the more traditional scheme of storing return addresses on a call stack, sometimes called a machine sta ...
, a special purpose register in computer architecture *
Adobe Lightroom Adobe Photoshop Lightroom, often shortened to Lightroom, is an Image organizer, image organization and image editing, editing application developed by Adobe Inc., Adobe and licensed as part of the Adobe Creative Cloud, Creative Cloud suite. It i ...
, photography software program *
L(R) In set theory, L(R) (pronounced ''L of R'') is the smallest transitive class, transitive inner model of Zermelo–Fraenkel set theory, ZF containing all the ordinal number, ordinals and all the real number, reals. Construction L(R) can be constru ...
(pronounced L of R), in set theory *
Lawrencium Lawrencium is a synthetic chemical element; it has symbol Lr (formerly Lw) and atomic number 103. It is named after Ernest Lawrence, inventor of the cyclotron, a device that was used to discover many artificial radioactive elements. A radioactiv ...
, symbol Lr, a chemical element * .22 Long Rifle, a type of rimfire ammunition *
Limiting reagent The limiting reagent (or limiting reactant or limiting agent) in a chemical reaction is a reactant that is totally consumed when the chemical reaction is completed. The amount of product formed is limited by this reagent, since the reaction can ...
, the reactant that is completely consumed in a chemical reaction *
Lactated Ringer's solution Ringer's lactate solution (RL), also known as sodium lactate solution, Lactated Ringer's (LR), and Hartmann's solution, is a mixture of sodium chloride, sodium lactate, potassium chloride, and calcium chloride in water. It is used for replaci ...
, an intravenous crystalloid resuscitative fluid


Other uses

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Legislative route In the United States, a legislative route (LR) or legislative highway is a highway defined by law Law is a set of rules that are created and are enforceable by social or governmental institutions to regulate behavior, with its precise d ...
, a U.S. highway defined by laws passed in a state legislature *
Latvijas Radio Latvijas Radio (shortened LR; literally "Latvia's Radio") is Latvia's national public-service radio broadcasting network. It began broadcasting on 1 November 1925, and has its headquarters in the Latvian capital, Riga. Latvijas Radio broadcasts ...
, a public radio broadcaster in Latvia *
Light rail Light rail (or light rail transit, abbreviated to LRT) is a form of passenger urban rail transit that uses rolling stock derived from tram technology National Conference of the Transportation Research Board while also having some features from ...
, a type of rail-based passenger transport


See also

* Long Range (disambiguation) *
Left and right (disambiguation) Left and right or left–right may refer to: * Left and right directions, body relative directions in terms of an observer * Left and right as designating different chirality, chiralities, independent of an observer (as in left glove, left-eyed fl ...
{{disambiguation