Interference is the act of interfering, invading, or poaching. Interference may also refer to:

Communications

* Interference (communication), anything which alters, modifies, or disrupts a message *

Adjacent-channel interference Adjacent-channel interference (ACI) is interference caused by extraneous power from a signal in an adjacent channel. ACI may be caused by inadequate filtering (such as incomplete filtering of unwanted modulation products in FM systems), improper t ...

, caused by extraneous power from a signal in an adjacent channel *

Co-channel interference Co-channel interference or CCI is crosstalk from two different radio transmitters using the same channel. Co-channel interference can be caused by many factors from weather conditions to administrative and design issues. Co-channel interference ...

, also known as crosstalk *

Electromagnetic interference Electromagnetic interference (EMI), also called radio-frequency interference (RFI) when in the radio frequency spectrum, is a disturbance generated by an external source that affects an electrical circuit by electromagnetic induction, electros ...

, disturbance that affects an electrical circuit * Inter-carrier interference, caused by Doppler shift in OFDM modulation * Intersymbol interference

Entertainment

Interference (band) Interference is an Irish band based around the late singer-songwriter Fergus O'Farrell. The band is featured in the Academy Award-winning movie ''Once''. Amidst the performances by the main characters, played by the Swell Season duo of Glen ...

, an Irish band which formed in 1984 * ''Interference'' (Crease album), 1995 * ''Interference'' (Cubanate album), 1998 * ''Interference'' (film), Paramount's first all-talking film * "Interference" (Prison Break episode), a 2007 episode * ''

Interference – Book One ''Interference – Book One: Shock Tactic'' is an original novel written by Lawrence Miles and based on the long-running British science fiction television series ''Doctor Who''. It features the Eighth Doctor, the Third Doctor, Sam, Fitz, Sarah ...

'', a 1999 ''Doctor Who'' novel by Lawrence Miles * ''

Interference – Book Two ''Interference – Book Two: The Hour of the Geek'' is an original novel written by Lawrence Miles and based on the long-running British science fiction television series ''Doctor Who''. It features the Eighth Doctor, the Third Doctor, Sam, Fitz ...

'', a 1999 ''Doctor Who'' novel by Lawrence Miles * ''Interference'' (novel), a 2019 novel by Sue Burke

Science

Biology

Crossover interference Crossover interference is the term used to refer to the non-random placement of crossovers with respect to each other during meiosis. The term is attributed to Hermann Joseph Muller, who observed that one crossover "interferes with the coincident o ...

, non-random placement of crossovers with respect to each other during meiosis * RNA interference, a process within living cells that moderates the activity of their genes *

Vaccine interference A vaccine is a biological Dosage form, preparation that provides active acquired immunity to a particular infectious disease, infectious or cancer, malignant disease. The safety and effectiveness of vaccines has been widely studied and verifie ...

, interaction between two or more vaccines mixed in the same formulation * Viral interference, one viral infection inhibiting another

Physics

* Interference engine * Interference fit, in engineering * Interference lithography, in optics * Thin-film interference, in optics * Wave interference, in physics

Other

Interference ripples Interference Ripples are a type of sedimentary structure made up of two sets of ripples formed at right-angles to each other as a result of there being two dominant paleocurrents. These ripples may be formed in the beds of intermittent streams ...

, in geology * Interference theory, in psychology

Sports

* Pass interference, a penalty in American football and Canadian Football * Interference (baseball), changing the course of play from what is expected *

Interference (ice hockey) A penalty in ice hockey is a punishment for an infringement of the rules. Most penalties are enforced by sending the offending player to a penalty box for a set number of minutes. During the penalty the player may not participate in play. Penaltie ...

Other uses

Interference (chess) In the game of chess, interference occurs when the line between an attacked piece and its defender is interrupted by sacrificially interposing a piece. It is a chess tactic which seldom arises, and is therefore often overlooked. Opportunities f ...

Interference proceeding An interference proceeding, also known as a priority contest, is an inter partes proceeding to determine the priority issues of multiple patent applications. It is a proceeding unique to the patent law of the United States. Unlike in most other cou ...

, in U.S. patent law *

Interfering thread nut An interfering thread nut is a type of locknut that has an undersized root diameter. This creates an interference between the nut Nut often refers to: * Nut (fruit), fruit composed of a hard shell and a seed, or a collective noun for dry and edib ...

, a type of locknut *

Statistical interference When two probability distributions overlap, statistical interference exists. Knowledge of the distributions can be used to determine the likelihood that one parameter exceeds another, and by how much. This technique can be used for dimensioning ...

, in statistics