interference - definition in the American English Dictionary - Cambridge Dictionaries Online

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interference

noun [U]  us   /ˌɪn·tərˈfɪər·əns/
On the radio, television, or telephone, interference is noise, lines, etc., that prevent a clear sound or picture from being received. physics Interference between two waves happens when they have the same frequency and produce a force that is either stronger or weaker than one wave alone. In sports, interference is an action that is against the rules which prevents an opposing player from completing a play.
(Definition of interference from the Cambridge Academic Content Dictionary © Cambridge University Press)
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