Reversal may refer to: *

Medical reversal Medical reversal refers to when a newer and methodologically superior clinical trial produces results that contradict existing clinical practice and the older trials on which it is based. This leads to an intervention that was widely used falling o ...

, when a medical intervention falls out of use after improved clinical trials demonstrate its ineffectiveness or harmfulness. *

Reversal (law) In law, an appeal is the process in which cases are reviewed by a higher authority, where parties request a formal change to an official decision. Appeals function both as a process for error correction as well as a process of clarifying and ...

, the setting aside of a decision of a lower court by a higher court * In drama, "reversal" refers to Aristotle's concept of

Peripeteia Peripeteia ( el, περιπέτεια) is a reversal of circumstances, or turning point. The term is primarily used with reference to works of literature; its anglicized form is peripety. Aristotle's view Aristotle, in his ''Poetics'', defines ...

Reversal film In photography, reversal film or slide film is a type of photographic film that produces a positive image on a transparent base. Instead of negatives and prints, reversal film is processed to produce transparencies or diapositives (abbreviat ...

, a type of photographic film also known as ''slide'' or ''transparency'' film * ''

The Reversal ''The Reversal'' is the 22nd novel by American author Michael Connelly and features the third major appearance of Los Angeles criminal defense attorney Michael "Mickey" Haller. Connelly introduced Haller in his bestselling 2005 novel ''The Linco ...

'', a novel by Michael Connelly * Reversal of

polarization (disambiguation) Polarization or polarisation may refer to: Mathematics *Polarization of an Abelian variety, in the mathematics of complex manifolds * Polarization of an algebraic form, a technique for expressing a homogeneous polynomial in a simpler fashion b ...

Reversal (wrestling) Collegiate wrestling (also known as folkstyle wrestling) is the form of wrestling practiced at the college and university level in the United States. This style of wrestling, with some slight modifications, is also practiced at high school and mi ...

, in which the defensive contender achieves an offensive position * ''Reversal'' (film), a movie about wrestling * Reversal, an options-trading strategy * Reversal of a word in formal language * "Reversal" (''Arrow''), an episode of ''Arrow'' * Russian reversal is a type of joke, usually starting with the words "In Soviet Russia", in which the subject and objects of a statement are reversed, commonly as a snowclone pattern

See also