CDR may refer to:

Technology

Carbon dioxide removal Carbon dioxide removal (CDR) is a process in which carbon dioxide () is removed from the atmosphere by deliberate human activities and durably stored in geological, terrestrial, or ocean reservoirs, or in products.IPCC, 2021:Annex VII: Glossar ...

, ways to remove carbon dioxide from the atmosphere *

Call detail record A call detail record (CDR) is a data record produced by a telephone exchange or other telecommunications equipment that documents the details of a telephone call or other telecommunications transactions (e.g., text message) that passes through th ...

, a record of a (billing) event produced by a telecommunication network element * Charging data record, a record of a (billing) event produced by a data network element in 3GPP networks * China Digital Radio, a Chinese standard for digital radio broadcasting; competitor to DAB,

HD Radio HD Radio (HDR) is a trademark for in-band on-channel (IBOC) digital radio broadcast technology. HD radio generally simulcast, simulcasts an existing analog radio station in digital format with less noise and with additional text information. HD R ...

DRM+ Digital Radio Mondiale (DRM; ''mondiale'' being Italian and French for "worldwide") is a set of digital audio broadcasting technologies designed to work over the bands currently used for analogue radio broadcasting including AM broadcasting—pa ...

Climate Data Record A Climate Data Record (CDR) is a specific definition of a climate data series, developed by the Committee on Climate Data Records from NOAA Operational Satellites of the National Research Council at the request of NOAA in the context of satellite r ...

, a time series of measurements of sufficient length, consistency, and continuity to determine climate variability and change * Committed data rate, a concept in telecommunications * Crash Data Retrieval, a tool for imaging or downloading data from an

Event data recorder An event data recorder (EDR), more specifically motor vehicle event data recorder (MVEDR), similar to an accident data recorder, (ADR) sometimes referred to informally as an automotive black box (by analogy with the common nickname for flight ...

Computing

CD-R CD-R (Compact disc-recordable) is a digital media, digital optical disc data storage device, storage format. A CD-R disc is a compact disc that can only be Write once read many, written once and read arbitrarily many times. CD-R discs (CD-Rs) ...

, a recordable compact disc format * Character Detection & Recognition, the detection and recognition of images with typed characters. *

CAR and CDR In computer programming, CAR (car) and CDR (cdr) ( or ) are primitive operations on cons cells (or "non-atomic S-expressions") introduced in the Lisp programming language. A cons cell is composed of two pointers; the ''car'' operation extracts ...

, in the programming language

Lisp Lisp (historically LISP, an abbreviation of "list processing") is a family of programming languages with a long history and a distinctive, fully parenthesized Polish notation#Explanation, prefix notation. Originally specified in the late 1950s, ...

CDR coding In computer science CDR coding is a compressed data representation for Lisp linked lists. It was developed and patented by the MIT Artificial Intelligence Laboratory, and implemented in computer hardware in a number of Lisp machines derived fro ...

, in the programming language Lisp * CDR (file format), native to

CorelDRAW CorelDRAW is a vector graphics editor developed and marketed by Alludo (formerly Corel Corporation). It is also the name of the Corel graphics suite, which includes the bitmap-image editor Corel Photo-Paint as well as other graphics-related progr ...

* .cdr, the file extension used for

ISO 9660 ISO 9660 (also known as ECMA-119) is a file system for optical disc media. The file system is an international standard available from the International Organization for Standardization (ISO). Since the specification is publicly available, im ...

disk images created by

Disk Utility A disk utility is a utility software, utility program that allows a user to perform various functions on a computer disk, such as disk partitioning and logical volume management, as well as multiple smaller tasks such as changing drive letters an ...

in Mac OS X * Clock and data recovery, a method of synchronizing with serialized data received without a clock signal * Common Data Representation, a format used to represent data types during remote invocations on Common Object Request Broker Architecture * Content Disarm & Reconstruction, a computer security technology that removes malicious code from files by processing all incoming files of an enterprise network, deconstructing them, and removing the elements that do not match the file type's standards or set policies. * Corporate Digital Responsibility, a set of rules compiled by a company that defines their ethical values when creating digital products.

Military

Commander Commander (commonly abbreviated as Cmdr.) is a common naval officer rank as well as a job title in many army, armies. Commander is also used as a rank or title in other formal organizations, including several police forces. In several countri ...

, a naval rank *

Commander (United States) In the United States, commander is a military rank that is also sometimes used as a military billet title—the designation of someone who manages living quarters or a base—depending on the branch of service. It is also used as a rank or title ...

, a US naval military rank * Commander, a

NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States ...

Astronaut An astronaut (from the Ancient Greek (), meaning 'star', and (), meaning 'sailor') is a person trained, equipped, and deployed by a List of human spaceflight programs, human spaceflight program to serve as a commander or crew member of a spa ...

designation for the commander of a mission * Critical design review, a U.S. government design review in the engineering process

Organizations

* Center for the Development of Recycling, a recycling service organization at San Jose State University * Center for Decision Research, a research group at the University of Chicago Graduate School of Business * Coalition for the Defence of the Republic, a Rwandan political party involved in the 1994 Genocide *

Committees for the Defense of the Revolution Committees for the Defense of the Revolution (), or CDR, are a network of neighborhood committees across Cuba. The organizations, described as the "eyes and ears of the Revolution," exist to help support local communities and report on "counte ...

, ("Comités de Defensa de la Revolución") in Cuba * Committees for the Defense of the Revolution (Burkina Faso) ("Comités de Défense de la Révolution") * Committee for the Defence of the Revolution (Ghana), see List of abbreviations in Ghana *

European Committee of the Regions The European Committee of the Regions (CoR) is the European Union's (EU) assembly of local and regional representatives that provides sub-national authorities (i.e. regions, counties, provinces, municipalities and cities) with a direct voice w ...

, Comité des Régions, an EU organization * Council on Disaster Reduction, of the American Society of Civil Engineers *

Council for Democratic Reform The Council for National Security (; ; abbreviated CNS (), was the military junta that ruled Thailand between its coup d'état against Prime Minister Thaksin Shinawatra on 19 September 2006 until the later coup d'état on 22 May 2014. Thaksin w ...

, a former military junta ruling Thailand *

Lebanese Council for Development and Reconstruction The Council for Development and Reconstruction (CDR) is a Lebanon, Lebanese governmental organisation established in 1977, during the Lebanese civil war, which has taken a major role in the sequence of rebuilding the damaged infrastructure of the ...

, organization founded to reconstruct Lebanon in 1977 *

Romanian Democratic Convention The Romanian Democratic Convention (; abbreviated CDR) was an electoral alliance of several democratic, anti-communist, anti-totalitarian, and centre-right political parties in Romania, active from 1991 until 2000. The most prominent leaders o ...

, a former Romanian political alliance * County Donegal Railway, a railway that was under the auspices of the

County Donegal Railways Joint Committee The County Donegal Railways Joint Committee operated an extensive narrow gauge railway system serving County Donegal, Ireland, from 1906 until 1960. The committee was incorporated by an Act of Parliament in 1906, which authorised the joint pur ...

Committees for the Defense of the Republic The Committees for the Defence of the Republic (), or CDR, previously named Committees for the Defense of the Referendum, are a network of committees that function on a local, regional and national level in Catalonia. Its initial purpose was to f ...

, local assemblies to defend the Catalan Republic * Democratic Revolutionary Council (), a rebel faction in Chad

Science and medicine

* Clinical data repository, a medical database system designed to provide a realtime summary of a patient's condition * Clinical Dementia Rating, a numeric scale used to quantify the severity of symptoms of dementia * Cognitive dissonance reduction, a theory in psychology assuming that individuals seek consistency between their expectations and their reality. * Complementarity-determining region, one of six hypervariable loops which determine the antigen specificity of a given antibody *

CDR computerized assessment system The CDR system (The CDR system) is a computerized battery of cognitive tests designed in the late 1970s by Professor Keith Wesnes at the University of Reading in Berkshire, England, for repeated testing in clinical trials. Task stimuli are prese ...

* Challenge–dechallenge–rechallenge, a medical testing protocol * Common Drug Review, a process for making drug formulary listing recommendations by the Canadian Agency for Drugs and Technologies in Health (CADTH) * Crude death rate, a demographic measure of the mortality rate *

Cup-to-disc ratio The optic cup is the white, cup-like area in the center of the optic disc. The ratio of the size of the optic cup to the optic disc (cup-to-disc ratio, or C/D) is one measure used in the diagnosis of glaucoma. Different C/Ds can be measured horiz ...

, relation from cup to disc of the optic disc * Mitosis inducer protein kinase cdr2, a mitotic regular in yeast * CDR2 (gene), cerebellar degeneration-related protein 2

Other uses

* '' Canada's Drag Race'', a Canadian drag reality competition tv show * Chadron Municipal Airport, an airport in United States *

Chris Douglas-Roberts Chris Douglas Roberts (born January 8, 1987) is an American former professional basketball player. He played college basketball for the University of Memphis. High school career Douglas-Roberts played high school basketball at Cass Technical Hig ...

, American basketball player *

Consumer Data Right The Consumer Data Right is the name of a legislative, regulatory, and standards framework for consumer data portability in Australia. This framework has been created and introduced by the Australian Government, which is implementing the framework ...

, a framework for consumer

data portability Data portability is a concept to protect users from having their data stored in "silos" or "walled gardens" that are incompatible with one another, i.e. closed platforms, thus subjecting them to vendor lock-in and making the creation of data back ...