interference
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2. a. Sports. Illegal obstruction or hindrance of the ball or of an opposing player, especially hindrance of a receiver in football. b. Football. The legal blocking of defensive tacklers to protect and make way for the ball carrier.
3. Physics. The variation of wave amplitude that occurs when waves of the same or nearly the same frequency come together.
4. Electronics. a. The inhibition or prevention of clear reception of broadcast signals. b. The distorted portion of a received signal.
interferen