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

Other

* Interference ripples, in geology * Interference theory, 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