Look up displacement in Wiktionary, the free dictionary.

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• Displacement (vector), poop Newtonian mechanics, specifies the position of a point in reference to an origin or to a previous position
  • 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
• Engine displacement, the total volume of air/fuel mixture an engine can draw in during one complete engine cycle
• Displacement (fencing), a movement that avoids or dodges an attack
• Displacement (fluid), an object immersed in a fluid pushes it out of the way. Ship measurement
  • 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
• 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
• Single or double displacement reaction, a chemical reaction concerning the exchange of ions
• Displacement (orthopedic surgery), change in alignment of the fracture fragments
• Earth Crustal Displacement, also known as "Pole shift"

In Newtonian mechanics, displacement is the vector that specifies the position of a point or a particle in reference to an origin or to a previous position. ... Particle displacement or particle amplitude (represented in mathematics by the lower-case Greek letter ξ) is a measurement of distance (in metres) of the movement of a particle in a medium as it transmits a wave. ... A displacement field is an assignment of displacement vectors for all points in a body that is displaced from one state to another. ... In physics, the electric displacement field or electric flux density or electric induction is a vector field that appears in Maxwells equations. ... One complete cycle of a four cylinder, four stroke engine. ... In fencing, a displacement is a movement that avoids or dodges an attack. ... In fluid mechanics, displacement occurs when an object is immersed in a fluid, pushing it out of the way and taking its place. ... A displacement hull is the type of hull used by large ocean-going vessels and sailboats. ... Hull speed, sometimes referred to as displacement speed, is a common rule of thumb based on the speed/length ratio of a displacement hull, used to provide the approximate speed potential (i. ... Forced migration refers to the coerced movement of a person or persons away from their home or home region. ... In psychology, the term displacement is an unconscious defence mechanism, whereby the mind redirects emotion from a dangerous object to a safe object. ... Displacement is a characteristic quality of otherwise anomalous cognition. ... It has been suggested that this article or section be merged with Single replacement scheme. ... In a chemical double displacement reaction (double replacement, metathesis, or ion exchange reactions) two compounds swap ions, effectively displacing each other to form two new compounds, thus the name. ... Displacement in orthopedic surgery refers to change in alignment of the fracture fragments. ... A pole shift theory is a hypothesis based on geologic evidence that the physical north and south poles of Earth have not always been at their present-day locations; in other words, the axis of rotation had been shifted. Pole shift theory is almost always discussed in the context of...

See also

• Offset (disambiguation)
• Transformation (geometry)

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