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Dependency, dependence, dependent or depend may refer to:

Computer science

• Dependency (computer science) or coupling, a state in which one object uses a function of another object
• Data dependency, which describes a dependence relation between statements in a program
• Dependence analysis, in compiler theory
• Dependency (UML), a relationship between one element in the Unified Modeling Language
• Dependency relation, a type of binary relation in mathematics and computer science.
• Functional dependency, a relationship between database attributes allowing normalization.
• Dependent type, in computer science and logic, a type that depends on a value
• Hidden dependency, a relation in which a change in many areas of a program produces unexpected side-effects
• Library dependency, a relationship described in and managed by a software dependency manager tool to mitigate dependency hell

Economics

• Dependant (British English) (Dependent - American English), a person who depends on another as a primary source of income
• Dependency ratio, in economics, the ratio of the economically dependent part of the economy to the productive part
• Dependency theory, an economic worldview that posits that resources flow from poor states to wealthy states

Linguistics

• Dependent and independent verb forms, distinct verb forms in Goidelic languages used with or without a preceding particle
• Dependency grammar is based on the dependency relation between the lexemes of a sentence
• Dependent clause

Mathematics

• Dependency relation, a type of binary relation in mathematics and computer science.
• Dependent and independent variables, in mathematics, the variable that depends on the independent variable
• The absence of independence (probability theory)
  • Tail dependence, from probability theory
  • Serial dependence, in statistics
  • Correlation and dependence
  • Mean dependence

Medicine and psychology

• Codependence, a pattern of detrimental behavioral interactions within a dysfunctional relationship
• Dependency need, the real need of the organism, or something that individuals cannot provide for themselves
• Dependent personality disorder, a personality disorder characterized by a pervasive psychological dependence on other people
• Substance dependence, an adaptive state associated with a withdrawal syndrome upon cessation of repeated exposure to a stimulus (e.g., drug intake)
  • Physical dependence, dependence that involves persistent physical–somatic withdrawal symptoms (e.g., fatigue and delirium tremens)
  • Psychological dependence, dependence that involves emotional–motivational withdrawal symptoms (e.g., dysphoria and anhedonia)
  • Alcohol dependence
  • Amphetamine dependence
  • Barbiturate dependence
  • Benzodiazepine dependence
  • Caffeine dependence
  • Cannabis dependence
  • Cocaine dependence
  • Opioid dependence
  • Tanning dependence

Political science

• Dependent territory, a classification of territory, especially a region that is not a sovereign state but a possession of same
  • Crown Dependencies, three specific dependencies of the United Kingdom: the Bailiwick of Guernsey, the Bailiwick of Jersey, and the Isle of Man
  • Dependencies of Norway
  • Ross Dependency, New Zealand Antarctic claim

Music

• Dependent (record label), a German independent record label that focuses on aggrotech, electro-industrial and futurepop music
• Dependent Music, an independent Canadian record label, owned and operated by the artists that were a part of the collective
• Dependency (band), an American Christian hardcore band

Philosophy

• Dependent (origination), in Buddhism, the idea that the existence of everything is conditional and dependent on a cause, and that nothing happens fortuitously or by chance

Other uses

• Depend (undergarment), a brand of absorbent, disposable underwear for adults
• Dependency (project management), a link amongst a project's terminal elements
• Dependency (religion), the relation of a monastic community with a newer community

• Disambiguation pages