• Separation (United States military)
  Separation (United States military)
  In the U.S. armed forces, separation means that a person is leaving active duty, but not necessarily leaving the service entirely. Separation typically occurs when someone reaches the date of their Expiration of Term of Service and are released from active duty, but still must complete their...
  
  , the process by which a service member leaves active duty
• Separation (air traffic control)
  Separation (air traffic control)
  In air traffic control, separation is the name for the concept of keeping an aircraft outside a minimum distance from another aircraft to reduce the risk of those aircraft colliding, as well as prevent accidents due to wake turbulence....
  
  , rules to minimise the risk of collision between aircraft in flight
• Separation (1967 film)
  Separation (1967 film)
  Separation, a film produced in 1967 and released in 1968, was written by and starred Jane Arden and directed by Jack Bond. The film explores the life of a middle-aged woman following the breakdown of her marriage...
  
  , a British feature film written by and starring Jane Arden and directed by Jack Bond
• Separation mastering, in music recording

Science

• Flow separation
  Flow separation
  All solid objects travelling through a fluid acquire a boundary layer of fluid around them where viscous forces occur in the layer of fluid close to the solid surface. Boundary layers can be either laminar or turbulent...
  
  , separation of a fluid boundary layer from the surface of a solid body moving relative to the fluid
• Separation of concerns
  Separation of concerns
  In computer science, separation of concerns is the process of separating a computer program into distinct features that overlap in functionality as little as possible. A concern is any piece of interest or focus in a program. Typically, concerns are synonymous with features or behaviors...
  
  , in computer science (and problem-solving in general)
• Separation process
  Separation process
  In chemistry and chemical engineering, a separation process, or simply a separation, is any mass transfer process used to convert a mixture of substances into two or more distinct product mixtures, at least one of which is enriched in one or more of the mixture's constituents. In some cases, a...
  
  , in chemistry
• Separation axiom
  Separation axiom
  In topology and related fields of mathematics, there are several restrictions that one often makes on the kinds of topological spaces that one wishes to consider. Some of these restrictions are given by the separation axioms...
  
  , concepts in the area of mathematics called topology
• Separated sets
  Separated sets
  In topology and related branches of mathematics, separated sets are pairs of subsets of a given topological space that are related to each other in a certain way....
  
  , related concept in topology, two sets disjoint from the other's closure
• Separation (behavior), the behavior of flocking animals to stand off from their neighbours
• Separation (statistics)
  Separation (statistics)
  In statistics separation is a phenomenon associated with models for dichotomous or categorical outcomes, including logistic and probit regression. Separation occurs if the predictor is associated with only one outcome value when the predictor is greater than some constant...
  
  , a problem encountered in fitting models for categorical outcomes

Law and society

• Legal separation
  Legal separation
  Legal separation is a legal process by which a married couple may formalize a de facto separation while remaining legally married. A legal separation is granted in the form of a court order, which can be in the form of a legally binding consent decree...
  
  , a legal status where married couples may disentangle their finances without divorce
• Racial separation, the separation of different racial groups in daily life

Politics

• Separation of church and state
  Separation of church and state
  The concept of the separation of church and state refers to the distance in the relationship between organized religion and the nation state....
  
  , the idea that religion and government functions should be separate
• Political separation (separatism
  Separatism
  Separatism is the advocacy of a state of cultural, ethnic, tribal, religious, racial, governmental or gender separation from the larger group. While it often refers to full political secession, separatist groups may seek nothing more than greater autonomy...
  
  ), those seeking to "separate" their group or territory from a larger entity

See also

• Divide (disambiguation)
• Part (disambiguation)
• Segregate (disambiguation)