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CD (disambiguation)

Last updated January 05, 2026

CD , or compact disc, is a thin plastic silvery disc for audio recordings.

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

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 c_d, a dimensionless quantity used to quantify the drag of an object in a fluid
Cluster decay, a rare mode of nuclear decay

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
Citizen's dividend, proposed policy based upon the Georgist principle that the natural world is the common property of all people
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

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

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

400 (number), written CD in Roman numerals
205 (number), written CD in hexadecimal
AD 400 (CD), a year of the Common Era
C.D (Criminal or Devil), a 2024 Indian psychological thriller film
"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
Sega CD, also known as the Sega Mega-CD, a CD-ROM accessory and format for the Sega Genesis produced by Sega as part of the fourth generation of video game consoles
- Sonic CD, a 1993 platform game developed and published by Sega for the Sega CD
Bitter CD, a luxury hatchback coupé
Cúcuta Deportivo, a Colombian football club