Displacement may refer to:

Physical sciences

Physics

• Displacement (vector), in Newtonian mechanics, specifies the position of a point in reference to an origin or to a previous position.In simple terms, its the difference between the initial position and the final position of an object
  • Particle displacement, a measurement of distance of the movement of a particle in a medium as it transmits a wave
  • Displacement field (mechanics), an assignment of displacement vectors for all points in a body that is displaced from one state to another
    • Electric displacement field, as appears in Maxwell's equations

Engineering

• Engine displacement, the total volume of air/fuel mixture an engine can draw in during one complete engine cycle
• Displacement (fluid), an object immersed in a fluid pushes it out of the way
• Displacement has several meanings related to ships and boats
  • Displacement hull, where the moving hull's weight is supported by buoyancy alone and it must displace water from its path rather than planing on the water's surface
  • Displacement speed, a rule of thumb for non planing watercraft to estimate their theoretical maximum speed
  • Displacement (ship), several related measurements of a ship's weight
• Displacement mapping, a technique in 3D computer graphics

Chemistry

• Single displacement reaction, a chemical reaction concerning the exchange of ions
• Double displacement reaction, a chemical reaction concerning the exchange of ions

Geology

• Earth Crustal Displacement, also known as "Pole shift"

Medicine

• Displacement (orthopedic surgery), change in alignment of the fracture fragments

Linguistics

• Displacement: Languages can be used to communicate ideas about things that are not in the immediate vicinity either spatially or temporally. One of the properties that separates Human Language from Animal Language.

Social sciences

• Forced migration, by persecution or violence
• Displacement (psychology), a sub-conscious defense mechanism
• Displacement (psiology, parapsychology, psychical science), a statistical or qualitative correspondence between targets and responses

Sport

• Displacement (fencing), a movement that avoids or dodges an attack

See also

• Offset (disambiguation)
• Transformation (geometry)

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