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Definition of interference
1the action of interfering or the process of being interfered with:he denied that there had been any interference in the country’s internal affairs an unwarranted interference with personal liberty Football the action of illegally interfering with an opponent’s ability to catch a passed or kicked ball. Football the legal blocking of an opponent or opponents to clear a way for the ballcarrier. Baseball any of various forms of hindering a player’s ability to make a play, run, hit, etc.. (in ice hockey and other sports) the illegal hindering of an opponent not in possession of the puck or ball. 2 Physics the combination of two or more electromagnetic waveforms to form a resultant wave in which the displacement is either reinforced or canceled. the fading or disturbance of received radio signals caused by unwanted signals from other sources, such as unshielded electrical equipment, or broadcasts from other stations or channels.