A CD or compact disc is a thin plastic silvery disc for audio recordings.
CD or cd may also refer to:
Science and technology
Astronomy and cosmology
- Cordoba Durchmusterung, a star catalog of the southern sky
- Cosmological decade or CÐ, a unit of time
- Type-cD galaxy, a galaxy morphology classification
Biology, ecology, and medicine
- Coeliac disease, long term autoimmune disorder causing intolerance to gluten
- Conduct disorder, a psychological disorder
- Conservation Dependent or LR/cd, an IUCN category
- Cluster of differentiation, a protocol used for the identification of cell surface molecules on white blood cells
- Crohn's disease
- Chlordane
- Communicable disease
Computing
- CD-ROM, compact disc technology applied for use in computer data
- cd (command), a command line command to change the current working directory in operating systems
- continuous delivery, a software development design practice
- continuous deployment, a software development design practice
- collision detection, CSMA/CD
Mathematics
- cd (elliptic function), one of Jacobi's elliptic functions
Other uses in science and technology
- Cadmium, symbol Cd, a chemical element
- Candela or cd, a unit of light intensity
- -CD, the North American call sign suffix for Class A low-power television stations operating with digital signals
- Circular dichroism, a form of spectroscopy
- Critical Dimension, the minimum feature size that a projection system can print in photolithography
- Drag coefficient or cd, a dimensionless quantity used to quantify the drag of an object in a fluid
- Cluster decay, a rare mode of nuclear decay
Businesses and organizations
Government, military, and political
- Canadian Forces' Decoration, by post-nominal letters
- Centre Democrats (Denmark), a Danish former political party
- Centre Democrats (Netherlands), a former political party of the Netherlands
- Centro Democratico, a political party in Italy
- Christian democracy, a political ideology
- Civil defense, an effort to protect the citizens of a state from military attack and natural disasters
- Community of Democracies, an intergovernmental organization of democracies and democratizing countries
- Conference on Disarmament, an international forum that negotiates multilateral arms control and disarmament agreements
- Corps Diplomatique, the collective body of foreign diplomats accredited to a particular country or body
- FBI Counterintelligence Division, the United States Federal Bureau of Investigation's division responsible for investigating espionage
Other business and organizations
- Certificate of deposit, a bank account in the United States with a fixed maturity date
- České dráhy or ČD, a railway operator of the Czech Republic
- Commander of the Order of Distinction, a rank in the Jamaican Orders of Societies of Honour
Places
- Central District, Seattle, a district in Seattle
- Democratic Republic of the Congo, by ISO 3166-1 alpha-2 country code
- .cd, the Internet domain of the Democratic Republic of the Congo
- cd., abbreviation for caddesi, street, in Turkish
Other uses
- 400 (number), written CD in Roman numerals
- 205 (number), written CD in hexadecimal
- AD 400 (CD), a year of the Common Era
- "CD", a song by T2 (band)
- cd, for cord (unit) of volume of wood
- Geely CD, a coupe automobile made by Geely Automobile
- Cairo Damascus or Damascus Document, a text found among the Dead Sea Scrolls
- Committee Draft, a status in the International Organization for Standardization
- Companion dog (title), a title offered to dogs by the American Kennel Club for dog obedience
- Cross-dressing, the act of wearing clothing associated with the opposite sex
- Corendon Dutch Airlines (IATA code)
- Sega Mega-CD
See also
Search for "cd" on Wikipedia.
- All pages with titles beginning with CD
- All pages with titles containing CD
- CDS (disambiguation)
- CeeDee (disambiguation)
- C&D (disambiguation)
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