Retrograde may refer to:
Retrograde motion in astronomy is, in general, orbit
In celestial mechanics, an orbit is the curved trajectory of an physical body, object such as the trajectory of a planet around a star, or of a natural satellite around a planet, or of ...
, in astronomy, describes the orbit of a celestial body that runs counter to the direction of the spin of that body which it orbits
Apparent retrograde motion
Apparent retrograde motion is the apparent motion of a planet
A planet is an astronomical body orbiting a star or Stellar evolution#Stellar remnants, stellar remnant that is massive enough to be Hydrostatic equilibrium, rounded by its ow ...
, in astronomy, is the apparent motion of planets as observed from a particular vantage point
upright=1.35, Schematic representation of a metamorphic reaction. Abbreviations of minerals: act = actinolite; chl = Chlorite group">chlorite; ep = epidote; gt = garnet; hbl = hornblende; plag = plagioclase. Two minerals represented in the figure ...
, in geology, describes a somewhat rare recrystallization of rocks under decreasing pressure and/or temperature conditions
Retrograde ejaculation occurs when semen
Semen, also known as seminal fluid, is an organic fluid created to contain spermatozoon, spermatozoa. It is secreted by the gonads (sexual glands) and other sexual organs of male or hermaphrodite, her ...
, in medicine
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
An autobiog ...
, in neuroscience / medicine, is a type of amnesia
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
''Nucleus'' (plural nuclei) is a Latin word for the seed inside a fruit. It most often refers to:
, in neuroscience
Retrograde inversion is a musical term
Musical is the adjective of music.
Musical may also refer to:
* Musical theatre, a performance art that combines songs, spoken dialogue, acting and dance
* Musical film and television, a genre of film and t ...
, a type of musical permutation
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 pro ...
, in chess problems
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 Pitch (music), pitches and ...
, in music
* "Retrograde" (James Blake song)
, a 2013 single from the album ''Overgrown''
* "Retrograde" (Dinah Jane song)
, 2019 song
* "Retrograde" (Pearl Jam song)
, 2019 song
''Retro/Grade'' is a video game developed by 24 Caret Games. The game is about ace pilot Rick Rocket, who must repeat his last space battle in reverse in order to protect the space time continuum. The game play is rhythm-based and timed to origin ...
'', in entertainment, a 2012 music video game for the PlayStation 3 & Microsoft Windows by 24 Caret Games
* ''Retrograde'' (film)
, a 2004 film
A reverse dictionary is a dictionary alphabetized by the reversal of each entry:
Before computers, reverse dictionaries were tedious to produce. The first computer-prod ...
, sometimes called ''retrograde dictionary''
* ''Retrograde'' (album)
, a 2016 album by Crown the Empire
Retrograde (TV series)
''Retrograde'' is an Australian narrative comedy series which first screened on the ABC (Australian TV channel), ABC in July 2020. It follows the lives of a group of thirty-something friends as they drown their sorrows at a virtual bar during th ...
'', a 2020 Australian television comedy series
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
Retrogradation (starch) Retrogradation is a reaction that takes place when the amylose
Amylose is a polysaccharide
, a beta-glucan polysaccharide
Image:amylose 3Dprojection.svg">350px, Amylose is a linear polymer of glucose mainly linked with α(1→4) bonds. It can be m ...
, the gelatinization of starch when the amylose and amylopectin chains realign themselves