CDO may refer to:

Aeronautics

* pronunciation of the zero-lift drag coefficient „

C_

”

Chemistry

Cysteine dioxygenase Cysteine dioxygenase (CDO) is a non-heme iron enzyme that catalyzes the conversion of L-cysteine to cysteine sulfinic acid (cysteine sulfinate). CDO plays an important role in cysteine catabolism, regulating intracellular levels of cysteine and r ...

, an enzyme * CDO, trade name of

chlordiazepoxide Chlordiazepoxide, trade name Librium among others, is a sedative and hypnotic medication of the benzodiazepine class; it is used to treat anxiety, insomnia and symptoms of withdrawal from alcohol and other drugs. Chlordiazepoxide has a medium to ...

* CdO,

cadmium oxide Cadmium oxide is an inorganic compound with the formula CdO. It is one of the main precursors to other cadmium compounds. It crystallizes in a cubic rocksalt lattice like sodium chloride, with octahedral cation and anion centers. It occurs natu ...

Computing

Climate Data Operators CDO is a command line suite for manipulating and analysing climate data. It provides more than 600 operators for this purpose and is an acronym for Climate Data Operators. Supported data formats are: * netCDF 3/4 * GRIB 1/2 * SERVICE * EXTRA ...

, a command line suite for manipulating and analyzing climate data * Collaboration Data Objects, a Microsoft application programming interface for data access *

Connected Data Objects Connected Data Objects (CDO) is a free implementation of a Distributed Shared Model on top of the Eclipse Modeling Framework (EMF). With CDO, programmers can easily enhance existing EMF models in such a way that they can be stored and subsequently ...

, a free implementation of a distributed shared model

Places

* Cagayan de Oro, a city on Mindanao Island, Philippines *

Canyon del Oro High School Canyon del Oro High School (CDO) is a comprehensive public high school in Oro Valley, Arizona, located north of Tucson at the base of Pusch Ridge. Established in 1964, CDO is one of three high schools of Amphitheater Public Schools and serves ...

, a public school in Oro Valley, Arizona, USA *

Cañada del Oro The Cañada del Oro (Spanish for ''Canyon of Gold''), is a primary watershed channel in the valley of Oro Valley, Arizona, US. The word ''cañada'' has a tilde ''( ñ)'' and is pronounced in Spanish; in English it is pronounced , not like th ...

, a primary watershed channel in the valley of Tucson, Arizona, USA

People

Job titles

* Chief data officer, an information systems title *

Chief Dental Officer (Canada) The Chief Dental Officer is an official position created by the Government of Canada to improve the oral health status of Canadians and to increase awareness about the prevention of oral diseases. They report to the Assistant Deputy Minister of the ...

, a Canadian official who advises on oral health *

Chief Dental Officer (United Kingdom) The Chief Dental Officers (or CDOs) in the United Kingdom are the most senior advisors for dentistry in each of the four UK governments, and are the heads of the dental profession. The CDO is one of the six chief professional officers, one for e ...

, a professional advisor for dentistry in each of the 4 UK governments *

Chief design officer Chief Design Officer (CDO), or design executive officer (DEO), is a corporate title sometimes given to an executive in charge of an organization's design initiatives. The CDO is typically responsible for overseeing all design and innovation aspects ...

, a corporate design position * Chief development officer (aka Chief business development officer), a business position * Chief Development Officer (India), a civil servant in the Indian states of Uttar Pradesh and Uttarakhand *

Chief digital officer A chief digital officer (CDO) or a chief digital information officer (CDIO) is an individual who helps a company, a government organization or a city drive growth by converting traditional "analog" businesses to digital ones using the potential of ...

* Chief diversity officer *

Command duty officer A command duty officer (CDO) or officer of the day (OOD) is a watchkeeping officer on a naval ship who is delegated authority from a commanding officer of the ship and holds command and control of the ship during that watch. A CDO represents the c ...

Other uses

* CDO Foodsphere, a Philippine meat processing company *

Central dense overcast The central dense overcast, or CDO, of a tropical cyclone or strong subtropical cyclone is the large central area of thunderstorms surrounding its circulation center, caused by the formation of its eyewall. It can be round, angular, oval, or i ...

, in a tropical storm *

Collateralized debt obligation A collateralized debt obligation (CDO) is a type of structured asset-backed security (ABS). Originally developed as instruments for the corporate debt markets, after 2002 CDOs became vehicles for refinancing mortgage-backed securities (MBS).Le ...

, a structured finance product *

Community dial office A "Community Dial Office" (CDO) was a small Class 5 telephone exchange in a rural area. These most often provided capacity for 1,000 or fewer customers and were designed for unattended operation. CDOs could be step by step, all relay or crossbar ...

, a telephone switching system for small communities *

Continuous duty overnight Continuous duty overnights (CDOs) are also referred to as "stand-ups", "naps", or "high-speeds" is a scheduling practice used in regional airline operations to circumvent, or "outsmart" government flight crew minimum rest requirements. A few major a ...

, a regional airline crew scheduling term * ISO-639 code for the

Eastern Min Eastern Min or Min Dong (, Foochow Romanized: Mìng-dĕ̤ng-ngṳ̄), is a branch of the Min group of Sinitic languages of China. The prestige form and most-cited representative form is the Fuzhou dialect, the speech of the capital of Fujian. ...

branch of Chinese *

Conservative Democratic Organisation The Conservative Democratic Organisation is a grouping within the British Conservative Party. It is widely believed to be aligned with Boris Johnson. The CDO was launched in December 2022, and is backed by the Conservative peer Lord Peter Crudda ...

, an organization associated with the UK Conservative Party