Retardation is the act or result of
delaying; the extent to which anything is retarded or delayed; that which retards or delays.
Retardation or retarded or similar may refer to:
Medicine and biology
*
Intellectual disability, a disorder characterized by significantly impaired cognitive functioning and deficits in adaptive behaviours, was previously referred to as "mental retardation"—the term no longer in use due to the
pejoration
A pejorative or slur is a word or grammatical form expressing a negative or a disrespectful connotation, a low opinion, or a lack of respect toward someone or something. It is also used to express criticism, hostility, or disregard. Sometimes, a ...
of the term "retardation" in this context
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Psychomotor retardation
Psychomotor may refer to:
* Psychomotor learning, the relationship between cognitive functions and physical movement
* Psychomotor retardation, a slowing-down of thought and a reduction of physical movements in an individual
* Psychomotor agitatio ...
, a slowing-down of thought and a reduction of physical movements in an individual
* A form of
heterochrony, able to cause effects such as neoteny, retention by adults of traits previously seen only in the young
Physics and engineering
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Retardation factor, in chromatography, the fraction of an analyte in the mobile phase of a chromatographic system
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Retarded potential, in electrodynamics, electromagnetic potentials generated by time-varying electric current or charge distributions in the past
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Retarded time
In electromagnetism, electromagnetic waves in vacuum travel at the speed of light ''c'', according to Maxwell's Equations. The retarded time is the time when the field began to propagate from the point where it was emitted to an observer. The term ...
, time when an electromagnetic field began to propagate from a point in a charge distribution to an observer
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Retardation time Retardation is the delayed response to an applied force or stress and can be described as "delay of the elasticity".
Ideal elastic materials show an immediate deformation after applying a jump-like stress, and an immediate reformation after removin ...
* Retardation, in telegraphy, a kind of distortion of signal pulses; see
law of squares
The law of squares is a theorem concerning transmission lines. It states that the Electric current, current injected into the line by a step in voltage reaches a maximum at a time proportional to the square of the distance down the line. The theo ...
* Retardation, as opposed to
Acceleration
Music
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Retardation (music)
A nonchord tone (NCT), nonharmonic tone, or embellishing tone is a Musical note, note in a piece of music or song that is not part of the implied or expressed chord (music), chord set out by the harmony, harmonic framework. In contrast, a chord t ...
, a suspension that resolves upward instead of downward
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"Retarded" (song), a 1990 single by the band The Afghan Whigs
Other uses
* A process used in
proofing (baking technique)
*
Retard (pejorative), a pejorative term for someone with a mental disability
See also
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Retarder (disambiguation) Retarder may refer to:
* ''Retarder'' (album), an album by The Unband
* Retarder (chemistry), a chemical agent that slows down a chemical reaction
* Retarder (mechanical engineering), a device for slowing down large trucks, lorries, buses, coaches ...
*
Get Retarded (disambiguation) Get Retarded may refer to:
*"Get Retarded", a song by Bassi Maestro from the album ''Tutti a casa (album), Tutti a casa''
*"Get Retarded", a song by Canibus from the album ''Can-I-Bus''
*"Get Retarded", a song by DJ Kay Slay from the album ''The St ...
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{{disambiguation