ADT or Adt may refer to:

Aviation

Air Departure Tax Air Departure Tax (ADT) is a pending tax intended to replace the UK-wide Air Passenger Duty in Scotland. Legislation has been passed to allow the introduction of the tax and it was originally expected to come into force on 1 April 2018. However ...

, in Scotland * IATA airport code for Ada Municipal Airport in State of Oklahoma, USA

Organizations and enterprises

* Abu Dhabi Terminals, abbreviated ADT, port operator for all commercial ports in

Abu Dhabi Abu Dhabi is the capital city of the United Arab Emirates. The city is the seat of the Abu Dhabi Central Capital District, the capital city of the Emirate of Abu Dhabi, and the UAE's List of cities in the United Arab Emirates, second-most popu ...

Adirondack Trailways Trailways of New York is one of the largest privately held transportation companies based in New York State. It employs over 450 people and carries passengers more than 80 million miles annually. TrailwaysNY, as it is known, operates over 150 tr ...

, an American bus company * ADT College, in London * ADT Inc., formerly American District Telegraph, which provides residential and small business electronic security and similar services in many countries

People

* Ana de Teresa (born 2001), Spanish footballer known as ADT * Harro Adt (born 1942), German diplomat * Katrin Adt (born 1972), German business executive

Places

American Discovery Trail The American Discovery Trail is a system of recreational trails and roads that collectively form a coast-to-coast hiking and biking trail across the mid-tier of the United States. Horses can also be ridden on most of this trail. The coastal tr ...

, a system of recreational trails in the United States

Science and technology

Biology and medicine

Androgen deprivation therapy Androgen deprivation therapy (ADT), also called androgen ablation therapy or androgen suppression therapy, is an antihormone therapy whose main use is in treating prostate cancer. Prostate cancer cells usually require androgen, androgen hormones, ...

, a common component of treatment for prostate cancer * Arogenate dehydratase, an enzyme *

Azadithiolate cofactor An azadithiolate cofactor is an anion with the formula NH(CH2S)22−. It is used as a cofactor in the eFehydrogenases, bacterial enzymes responsible for the reversible reduction of 2 H+ to H2. As a cofactor, the two thiolate functional groups are ...

, an organosulfur compound found in some enzymes

Computing

Abstract data type In computer science, an abstract data type (ADT) is a mathematical model for data types, defined by its behavior (semantics) from the point of view of a '' user'' of the data, specifically in terms of possible values, possible operations on data ...

Algebraic data type In computer programming, especially functional programming and type theory, an algebraic data type (ADT) is a kind of composite data type, i.e., a data type formed by combining other types. Two common classes of algebraic types are product ty ...

, a composite type in computer programming *

Alternating decision tree An alternating decision tree (ADTree) is a machine learning method for classification. It generalizes decision trees and has connections to boosting. An ADTree consists of an alternation of decision nodes, which specify a predicate condition, and ...

, a machine learning method * Android Development Tools, a plugin for the Eclipse IDE * Asynchronous data transfer

Technology

* Active Denial Technology, a non-lethal, directed-energy weapon developed by the U.S. military *

Admission, discharge, and transfer system An admission, discharge, and transfer (ADT) system is a backbone system for the structure of other types of business systems. An ADT system is one of four types of core business systems: ADT, financial, scheduling, and acuity (McGonigle, D., & Mas ...

, a system for the structure of other types of business systems *

Automatic double tracking Automatic double-tracking or artificial double-tracking (ADT) is an analogue recording technique designed to enhance the sound of voices or instruments during the mixing process. It uses Delay (audio effect), tape delay to create a delayed copy ...

, an audio recording technology

Sports

Asian Development Tour The Asian Development Tour, founded in 2010, is a professional golf tour. It is the development tour for the Asian Tour. Players who fail to earn Asian Tour cards through qualifying school may play on the tour. Currently, the top ten players on th ...

, a golf tour *

Asociación Deportiva Tarma Asociación Deportiva Tarma, commonly referred as ADT, or Tarma, is a Peruvian professional association football, football club based in the city of Tarma, Department of Junín, Junín. The club was founded in 1929 as Alianza Tarma, changing their ...

, a Peruvian association football club *

Azkals Development Team The Azkals Development Team, commonly referred to as ADT, is a Philippine developmental football club that last competed in Philippines Football League, before officially withdrawing from the competition in May 2023. Founded in 2020, the team ...

, a Filipino football club

Other uses

* adt, one of two ISO 639-3 codes for the

Adnyamathanha language The Adnyamathanha language (pronounced ), also known as yura ngarwala natively and Kuyani, also known as Guyani and other variants, are two closely related Australian Aboriginal languages. They are traditional languages of the Adnyamathanha of ...

, an Australian Aboriginal language *

American death triangle The American Death Triangle, also known as the "American Triangle", "Triangle Anchor"The Mountaineers, 114. or simply the "Death Triangle", is a dangerous type of rock and ice climbing anchor infamous for both magnifying load forces on fixed anchor ...

, a deprecated rock climbing anchor system *

Atlantic Daylight Time The Atlantic Time Zone is a geographical region that keeps standard time—called Atlantic Standard Time (AST)—by subtracting four hours from Coordinated Universal Time ( UTC), resulting in UTC−04:00. AST is observed in parts of North America ...

* Average Daily Theoretical (also known as "theoretical loss" or "theo"), a calculation used to determine gamblers' casino comps *

Average Daily Traffic Annual average daily traffic (AADT) is a measure used primarily in transportation planning, transportation engineering and retail location selection. Traditionally, it is the total volume of vehicle traffic of a highway or road for a year divided ...

, used in transportation planning * Advanced Dvorak Technique - a technique developed on the basis of the

Dvorak technique The Dvorak technique (developed between 1969 and 1984 by Vernon Dvorak) is a widely used system to estimate tropical cyclone intensity (which includes tropical depression, tropical storm, and hurricane/typhoon/intense tropical cyclone intensities ...

to estimate the intensity of

tropical cyclones A tropical cyclone is a rapidly rotating storm system with a low-pressure area, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depending on its ...

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