title: Suppression
text: # Suppression
  
  Suppression may refer to:
  
  ## Laws
  
  * Suppression of Communism Act
  * Suppression order a type of censorship where a court rules that certain information cannot be published
  * Tohunga Suppression Act 1907, an Act of the Parliament of New Zealand aimed to replace tohunga as traditional Māori healers with "modern" medicine
  
  ## Mathematics and science
  
  ### Biology, psychology and healthcare
  
  * Suppression (eye), of an eye is a subconscious adaptation by a person's brain to eliminate the symptoms of disorders of binocular vision such as strabismus, convergence insufficiency and aniseikonia
  * Appetite suppression
  * Bone marrow suppression, the decrease in cells responsible for providing immunity, carrying oxygen, and those responsible for normal blood clotting
  * Cough medicine, which may contain a cough suppressant, a medicinal drug used in an attempt to treat coughing
  * Expressive suppression, a psychological aspect of emotion regulation
  * Flash suppression, a phenomenon of visual perception in which an image presented to one eye is suppressed by a flash of another image presented to the other eye
  * Genetic suppression
  * Reflux suppressant, in medicine
  * Suppression subtractive hybridization, in biochemistry
  * Thought suppression, the psychological process of deliberately trying to stop thinking about certain thoughts, associated with obsessive-compulsive disorder
  
  ### Other uses in mathematics and science
  
  * Compton suppression, in nuclear physics
  * Zero suppression, in mathematics and information theory
  
  ## Politics
  
  * Censorship, the suppression of public communication considered objectionable to the general body of people as determined by a government or media outlet
  * Suppression of dissent, occurs when an individual or group tries to censor, persecute or otherwise oppress the other party rather than communicate logically
  * Suppression of evidence, the act of preventing evidence from being shown in a trial
  * Voter suppression, a strategy to influence the outcome of an election by discouraging or preventing people from exercising their right to vote
  * Catch and kill, buying exclusive publication rights to an individual's story, and then suppressing the information
  
  ## Religion
  
  * Suppression (parish), the forced closure of a Catholic parish or association
  * Religious intolerance, or religious suppression, intolerance against another's religious beliefs or practices by individuals, private groups, government agencies or the whole government
  * Suppressive Person, a Church of Scientology concept discussed in the book, The Cause of Suppression
  
  ## Technology
  
  * Electromagnetic interference suppression, e.g., of electrical noise from switches and motors
  * Fire suppression system
     * Firefighting, involves the suppression of fire
  * Free energy suppression and other suppressed technology
  * Silence suppression, in telephony
  * Transient-voltage-suppression diode, an electronic component used to protect sensitive electronics from voltage spikes induced on connected wires
  
  ## Weapons
  
  * Suppressive fire, weapons fire that degrades the performance of a target below the level needed to fulfill its mission
  * Suppressor, a device attached to or part of the barrel of a firearm which reduces the amount of noise and flash generated by firing the weapon
  
  ## Other uses
  
  * Suppressed correlative, a logical fallacy
  