CDA, Cda, or CdA may refer to:

In education

Central Delta Academy Central Delta Academy (CDA) was a private elementary and middle school,, and later just elementary school, in Inverness, Mississippi,

, a private school in Mississippi *Certified

dental assistant Dental assistants are members of the dental team. They support a dental operator (such as a dentist or other treating dental auxiliary) in providing more efficient dentistry, dental treatment. ''Dental assistants'' are distinguished from other gr ...

, in the United States * Child Development Associate, a credential in the early care and education *

Communicative Disorders Assistant A communicative disorders assistant (CDA) performs hearing and speech-language screenings, prepares therapy materials, implements speech therapy, reports on therapy outcomes, performs routine maintenance on clinical equipment, and works with speec ...

, a credential in assisting a registered Audiologist or Speech Language Pathologist, in Canada * Coram Deo Academy, a private Christian school in Flower Mound, Texas

In law and government

Government agencies

* Capital Development Authority, a kind of government entity **

Capital Development Authority (Islamabad) Capital Development Authority (Urdu: وفاقی ترقیاتی ادارہ, abbreviated as CDA) is a public benefit corporation responsible for providing municipal services in Islamabad Capital Territory. The CDA was established on 14 June 1960 ...

, the Capital Development Authority of Pakistan * Combined Development Agency, a uranium purchasing authority run by the US and UK government from 1948 * Canadian Defence Academy, an organization in the Canadian Forces

Laws

Communications Decency Act The Communications Decency Act of 1996 (CDA) was the United States Congress's first notable attempt to regulate pornographic material on the Internet. In the 1997 landmark case '' Reno v. ACLU'', the United States Supreme Court unanimously stru ...

, a US law found partially unconstitutional *

Crime and Disorder Act 1998 The Crime and Disorder Act 1998 (c. 37) is an Act of the Parliament of the United Kingdom. The Act was published on 2 December 1997 and received royal assent in July 1998. Its key areas were the introduction of Anti-Social Behaviour Orders, Se ...

, a UK law

Other uses in law and government

Chargé d'Affaires A (), plural ''chargés d'affaires'', often shortened to ''chargé'' (French) and sometimes in colloquial English to ''charge-D'', is a diplomat who serves as an embassy's chief of mission in the absence of the ambassador. The term is Frenc ...

* Confidential disclosure agreement *

Criminal defense attorney A criminal defense lawyer is a lawyer (mostly barristers) specializing in the defense of individuals and companies charged with criminal activity. Some criminal defense lawyers are privately retained, while others are employed by the various j ...

Organizations

Political parties and lobbying groups

Christian Democratic Alliance (South Africa) The Christian Democratic Alliance was a minor political party in South Africa, an alliance of five Christian Democratic Christian democracy is an ideology inspired by Christian social teaching to respond to the challenges of contemporary ...

*Christian Democrats of America, a

Christian democratic Christian democracy is an ideology inspired by Christian social teaching to respond to the challenges of contemporary society and politics. Christian democracy has drawn mainly from Catholic social teaching and neo-scholasticism, as well ...

organization in the US *

Christian Democratic Appeal The Christian Democratic Appeal ( , CDA) is a Christian democratic and conservative political party in the Netherlands. Formed as a federation in 1975 by the Catholic People's Party, the Anti-Revolutionary Party, and the Christian Historical ...

, a Christian democratic party in the Netherlands *

College Democrats of America The College Democrats of America (CDA) is the official college outreach arm of the Democratic National Committee. It has over 500 college and university student members in College Democrats chapters across the United States. History The organ ...

, the official youth outreach arm of the US Democratic Party *

Conservative Democratic Alliance The Conservative Democratic Alliance (CDA) was a political pressure group from the United Kingdom. The CDA referred to itself as the "authentic voice of conservatism". It closed in December 2008. Foundation and organisation The CDA was formed m ...

, in the UK

Other organizations

Catholic Daughters of the Americas Catholic Daughters of the Americas was founded in 1903, is one of the largest women's organizations in the Americas. Founded in Utica, New York, it has its headquarters in Manhattan, New York City. History The Catholic Daughters of the Amer ...

, a Catholic women's charitable organization *

Canadian Dental Association The Canadian Dental Association (CDA; ) is a non-profit professional association representing Canada's provincial and territorial dental associations. Headquartered in Canada's capital city Ottawa, the CDA serves its members and the public by ma ...

, an association of dentists in Canada *

Diabetes Canada Diabetes Canada (known from 1953 to 2017 as the Canadian Diabetes Association or CDA) is a registered national charity whose mission includes serving the 11 million Canadians living with diabetes or prediabetes. Diabetes Canada programs include: ...

, which was known until 2017 as the Canadian Diabetes Association *

Chittagong Development Authority Chattogram Development Authority (CDA) is a self-governing organization in Chittagong, Bangladesh, which is responsible for implementing the city's master plan. It was established by the government in 1959 to manage the city's growth and drew up a ...

Club de Deportes Antofagasta Deportes Antofagasta is a Chilean football club based in the city of Antofagasta currently playing in the Primera B Of Chile. The club's home stadium is the Estadio Bicentenario Calvo y Bascuñán, which has a capacity of 21,178. History The c ...

, a Chilean football club * Chinese Daoist Association

In science and technology

In chemistry

Chiral derivatizing agent In analytical chemistry, a chiral derivatizing agent (CDA), also known as a chiral resolving reagent, is a derivatization reagent that is a chiral auxiliary used to convert a mixture of enantiomers into diastereomers in order to analyze the quant ...

, a type of chemical designed to react with enantiomers to indicate the enantiopurity * Completely denatured alcohol, the most heavily denatured alcohol

In computing

*".cda", a filename extension for a Compact Disc Audio track * Cellular digital accessory, a means to identify the software version of a mobile phone *

Red Book (audio CD standard) Compact Disc Digital Audio (CDDA or CD-DA), also known as Digital Audio Compact Disc or simply as Audio CD, is the standard format for audio compact discs. The standard is defined in the '' Red Book'' technical specifications, which is why t ...

, Compact Disc Audio, the standard format for a CD *Content Delivery Application, a component of a typical

content management system A content management system (CMS) is computer software used to manage the creation and modification of digital content ( content management).''Managing Enterprise Content: A Unified Content Strategy''. Ann Rockley, Pamela Kostur, Steve Manning. New ...

In health and medicine

, an association of dentists in Canada *

, which was known until 2017 as the Canadian Diabetes Association * Chlorproguanil/dapsone/artesunate, an antimalarial drug *

Clinical Document Architecture The HL7 Clinical Document Architecture (CDA) is an XML-based markup standard intended to specify the encoding, structure and semantics of clinical documents for exchange. In November 2000, HL7 published Release 1.0. The organization published ...

, a healthcare documentation standard *

Congenital dyserythropoietic anemia Congenital dyserythropoietic anemia (CDA) is a rare blood disorder, similar to the thalassemias. CDA is one of many types of anemia, characterized by ineffective erythropoiesis, and resulting from a decrease in the number of red blood cells (RBCs) ...

, a blood condition *

Cytidine deaminase Cytidine deaminase is an enzyme that in humans is encoded by the ''CDA'' gene. This gene encodes an enzyme involved in pyrimidine salvaging. The encoded protein forms a homotetramer that catalyzes the irreversible hydrolytic deamination of cytidi ...

, an enzyme *

Communicative disorders assistant A communicative disorders assistant (CDA) performs hearing and speech-language screenings, prepares therapy materials, implements speech therapy, reports on therapy outcomes, performs routine maintenance on clinical equipment, and works with speec ...

, a profession

In spaceflight

* Command and data acquisition station, in spacecraft operations *Cosmic dust analyzer, an instrument on the

Cassini–Huygens ''Cassini–Huygens'' ( ), commonly called ''Cassini'', was a space research, space-research mission by NASA, the European Space Agency (ESA), and the Italian Space Agency (ASI) to send a space probe to study the planet Saturn and its system, i ...

spacecraft

In mathematics

Cantor's diagonal argument Cantor's diagonal argument (among various similar namesthe diagonalisation argument, the diagonal slash argument, the anti-diagonal argument, the diagonal method, and Cantor's diagonalization proof) is a mathematical proof that there are infin ...

, a proof technique in set theory

Other uses on science and technology

*Canonical discriminant analysis, a type of

linear discriminant analysis Linear discriminant analysis (LDA), normal discriminant analysis (NDA), canonical variates analysis (CVA), or discriminant function analysis is a generalization of Fisher's linear discriminant, a method used in statistics and other fields, to fi ...

*Cda, abbreviation for the orchid genus ''Cochlioda'', a synonym of ''

Oncidium ''Oncidium'', abbreviated as Onc. in the horticultural trade, is a genus that, , contains about 340 species of orchids from the subtribe Oncidiinae of the orchid family Orchidaceae. It is distributed across tropical and subtropical America from ...

'' *

Continuous descent approach Continuous descent approach (CDA), also known as optimized profile descent (OPD), is a method by which aircraft approach airports prior to landing. It is designed to reduce fuel consumption and noise compared to other conventional descents. Instead ...

, an aircraft approach method designed to reduce fuel burn and noise *Controlled droplet application, a concept for improving the efficiency of

pesticide application Pesticide application is the practical way in which pesticides (including herbicides, fungicides, insecticides, or nematode control agents) are delivered to their ''biological targets'' (''e.g.'' Pest (organism), pest organism, crop or other pl ...

* or drag area, the product of the drag coefficient and a reference area **, the drag area in automobile aerodynamics *

Current differencing amplifier A Norton amplifier or current differencing amplifier (CDA) is an electronic amplifier with two low impedance current inputs and one low impedance voltage output where the output voltage is proportional to the difference between the two input curren ...

, amplifier taking current difference as input and voltage as output

Other uses

* Child Detection Agency, in Disney Pixar Monster's Inc. *

Caran d'Ache (company) Caran d'Ache () is a Swiss manufacturing company of art materials and writing instruments. The company, established in 1915, produces a wide range of products including colored pencils, graphite pencils, pastels, fountain pens, ballpoint p ...

, a Swiss fine arts products company * Cardinia Road railway station, Melbourne *

Coeur d'Alene (disambiguation) Coeur d'Alene may refer to a people and related place names in the northwestern United States: * Coeur d'Alene, Idaho, a city in the United States ** Coeur d'Alene Airport ** Coeur d'Alene Charter Academy ** Coeur d'Alene High School ** ''Coeur d'A ...

, multiple meanings *, an airline from the Dominican Republic * Critical discourse analysis, in critical theory *

Chantiers de l'Atlantique Chantiers de l'Atlantique is a shipyard in Saint-Nazaire, Saint-Nazaire, France. It is one of the world's largest shipyards, constructing a wide range of commercial, naval, and passenger ships. It is located near Nantes, at the mouth of the Loire, ...

, French shipyard *Compressed Dry Air, term used in manufacturing and industry {{disambiguation zea:CDA