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 For mobile telecommunications, the Charging Data Record (CDR) is, in 3GPP parlance, a formatted collection of information about a chargeable telecommunication event (making a phone call, using the Internet from your mobile device). CDRs are used ...

, 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 Content Disarm & Reconstruction (CDR) is a computer security technology for removing potentially malicious code from files. Unlike malware analysis, CDR technology does not determine or detect malware's functionality but removes all file components ...

, 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 corporation or body corporate is an individual or a group of people, such as an association or company, that has been authorized by the state to act as a single entity (a legal entity recognized by private and public law as "born out of sta ...

, 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 In the United States military integrated acquisition lifecycle the technical section has multiple acquisition technical reviews. Technical reviews and audits assist the acquisition and the number and types are tailored to the acquisition. Overall ...

, a U.S. government design review in the engineering process

Organizations

Center for the Development of Recycling The Center for the Development of Recycling (CDR) was a university-based, non-profit, environmental research and service organization. The CDR operated the recycling services directory website RecycleStuff.us and operated a call center for appoint ...

, a recycling service organization at San Jose State University *

Center for Decision Research The University of Chicago Booth School of Business (branded as Chicago Booth) is the graduate business school of the University of Chicago, a private research university in Chicago, Illinois. Founded in 1898, Chicago Booth is the second-oldest b ...

, a research group at the University of Chicago Graduate School of Business *

Coalition for the Defence of the Republic The Coalition for the Defence of the Republic (, CDR) was a Rwandan far-right Hutu Power political party that took a major role in inciting the Rwandan genocide. History The CDR was founded in 1992 and initially led by Martin Bucyana until his a ...

, 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) The Committees for the Defense of the Revolution (, CDRs) were systems of local revolutionary cells, established in Burkina Faso by the Marxist-Leninist and pan-Africanist leader Thomas Sankara, President of the country from 1983 until his as ...

("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 The Clinical Dementia Rating or CDR is a numeric scale used to quantify the severity of symptoms of dementia (i.e. its 'stage'). Scale Using a structured-interview protocol developed by Charles Hughes, Leonard Berg, John C. Morris and other coll ...

, 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 Challenge–dechallenge–rechallenge (CDR) is a medical testing protocol in which a medicine or drug is administered, withdrawn, then re-administered, while being monitored for adverse effects at each stage. The protocol is used when statistica ...

, 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 Canada's Drug Agency (CDA; ) is a pan-Canadian health organization responsible for coordinating and aligning drug policy across provinces and territories. The CDA provides Canada's various healthcare organizations with evidence-based advice, allo ...

(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 is a protein that in humans is encoded by the ''CDR2'' gene In biology, the word gene has two meanings. The Mendelian gene is a basic unit of heredity. The molecular gene is a sequence of nucleotid ...

, cerebellar degeneration-related protein 2

Other uses

* ''

Canada's Drag Race ''Canada's Drag Race'' is a Canadian reality competition television series based on the American series ''RuPaul's Drag Race'' and is the Canadian edition of the ''Drag Race'' franchise, produced by Blue Ant Studios. In a similar format to t ...

'', 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 ...