Retrograde may refer to:
Film and television
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''Retrograde'' (2004 film), a film by Christopher Kulikowski
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''Retrograde'' (2022 film), a documentary film by Matthew Heineman
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''Retrograde'' (TV series), a 2020 Australian television comedy series
Medicine and science
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Retrograde amnesia
In neurology, retrograde amnesia (RA) is a loss of memory-access to events that occurred or information that was learned in the past. It is caused by an injury or the onset of a disease. It tends to negatively affect episodic, autobiographical, ...
, a loss of memory-access to past events
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Retrograde ejaculation
Retrograde ejaculation occurs when semen which would be ejaculated via the urethra is redirected to the urinary bladder. Normally, the sphincter of the bladder contracts before ejaculation, sealing the bladder which besides inhibiting the releas ...
, the redirection of ejaculated semen into the urinary bladder
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Retrograde metamorphism
Metamorphism is the transformation of existing rock (the protolith) to rock with a different mineral composition or texture. Metamorphism takes place at temperatures in excess of , and often also at elevated pressure or in the presence of chem ...
, the recrystallization of rocks under decreasing pressure and/or temperature
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Retrograde motion
Retrograde motion in astronomy is, in general, orbital or rotational motion of an object in the direction opposite the rotation of its primary, that is, the central object (right figure). It may also describe other motions such as precession or ...
, the opposite direction of a celestial body's apparent orbit
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Retrograde signaling
Retrograde signaling in biology is the process where a signal travels backwards from a target source to its original source. For example, the nucleus of a cell is the original source for creating signaling proteins. During retrograde signaling, ins ...
, the process where a signal travels backwards from a target source to its original source
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Apparent retrograde motion
Apparent retrograde motion is the apparent motion of a planet in a direction opposite to that of other bodies within its system, as observed from a particular vantage point. Direct motion or prograde motion is motion in the same direction as ...
, the apparent motion of planets as observed from a particular vantage point
Music and entertainment
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''Retrograde'' (album), a 2016 album by Crown the Empire
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''Retrograde'' (Dinah Jane song), a 2019 single by Dinah Jane
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''Retrograde'' (James Blake song), a 2013 single from the album ''Overgrown''
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Retrograde (music) A melodic line that is the reverse of a previously or simultaneously stated line is said to be its retrograde or cancrizans ("walking backward", medieval Latin, from ''cancer'', crab). An exact retrograde includes both the pitches and rhythms in re ...
, the playing back of a passage of notes
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''Retrograde'' (Pearl Jam song), a 2019 single by American rock band Pearl Jam
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Retrograde inversion
Retrograde inversion is a musical term that literally means "backwards and upside down": "The inverse of the series is sounded in reverse order." Retrograde reverses the order of the motif's pitches: what was the first pitch becomes the last, and ...
, a type of musical permutation
* ''
Retro/Grade'', a video game developed by 24 Caret Games
Other uses
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Retrograde analysis
In chess problems, retrograde analysis is a technique employed to determine which moves were played leading up to a given position. While this technique is rarely needed for solving ordinary chess problems, there is a whole subgenre of chess pr ...
, in chess problems
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Reverse dictionary
A reverse dictionary is a dictionary alphabetized by the reversal of each entry:
:kcots (stock)
:kcotseid (diestock)
:kcotser (restock)
:kcotsevil (livestock)
Before computers, reverse dictionaries were tedious to produce. The first computer-prod ...
, sometimes called ''retrograde dictionary''
See also
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Retrogradation
Retrogradation is the landward change in position of the front of a river delta with time. This occurs when the mass balance of sediment into the delta is such that the volume of incoming sediment is less than the volume of the delta that is lost ...
, a landward change in position of the front of a river delta with time
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Retrogradation (starch)
Retrogradation is a reaction that takes place when the amylose and amylopectin chains in cooked, gelatinized starch realign themselves as the cooked starch cools.
When native starch is heated and dissolved in water, the crystalline structure of a ...
, the gelatinization of starch when the amylose and amylopectin chains realign themselves
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