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), improp ...

, 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 interferen ...

, also known as crosstalk * Electromagnetic interference, disturbance that affects an electrical circuit * Inter-carrier interference, caused by Doppler shift in OFDM modulation *

Intersymbol interference In telecommunications, intersymbol interference (ISI) is a form of distortion of a signal in which one symbol interferes with subsequent symbols. This is an unwanted phenomenon as the previous symbols have a similar effect as noise, thus making ...

, distortion caused by successive symbols

Entertainment

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

Science

Biology

* Crossover interference, non-random placement of crossovers with respect to each other during meiosis *

RNA interference RNA interference (RNAi) is a biological process in which RNA molecules are involved in sequence-specific suppression of gene expression by double-stranded RNA, through translational or transcriptional repression. Historically, RNAi was known by ...

, a process within living cells that moderates the activity of their genes * Vaccine interference, interaction between two or more vaccines mixed in the same formulation * Viral interference, one viral infection inhibiting another

Physics

* Interference engine *

Interference fit An interference fit, also known as a pressed fit or friction fit, is a form of fastening between two tightfitting mating parts that produces a joint which is held together by friction after the parts are pushed together. Depending on the amoun ...

, in engineering *

Interference lithography Interference lithography (or holographic lithography) is a technique that uses coherent light (such as light from a laser) for patterning regular arrays of fine features without the use of complex optics, optical systems or photomasks. Basic prin ...

, in optics *

Thin-film interference Thin-film interference is a natural phenomenon in which light waves reflected by the upper and lower boundaries of a thin film Interference (wave propagation), interfere with one another, increasing reflection at some wavelengths and decreasing it ...

, in optics *

Wave interference In physics, interference is a phenomenon in which two coherent waves are combined by adding their intensities or displacements with due consideration for their phase difference. The resultant wave may have greater amplitude (constructive in ...

, in physics

Other

* Interference ripples, in geology *

Interference theory The interference theory is a theory regarding human memory. Interference occurs in learning. The notion is that memories encoded in long-term memory (LTM) are forgotten and cannot be retrieved into short-term memory (STM) because either memory co ...

, in psychology

Sports

Pass interference In American and Canadian football, pass interference (PI) is a foul that occurs when a player interferes with an eligible receiver's ability to make a fair attempt to catch a forward pass. Pass interference may include tripping, pushing, pulli ...

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

Other uses

* Interference (chess) * Interference proceeding, in U.S. patent law * Interfering thread nut, a type of locknut * Statistical interference, in statistics