Definition of obstruction noun from the Oxford Advanced American Dictionary

     

    obstruction

     noun
    noun
    NAmE//əbˈstrʌkʃn//
     
     
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  1. 1[uncountable, countable] the fact of trying to prevent something or someone from making progress the obstruction of justice He was arrested for obstruction of a police officer in the execution of his duty.
  2. 2[uncountable, countable] the fact of blocking a road, an entrance, a passage, etc. obstruction of the factory gates The abandoned car was causing an obstruction.
  3. 3[countable] something that blocks a road, an entrance, etc. It is my job to make sure that all pathways are clear of obstructions.
  4. 4[countable, uncountable] something that blocks a passage or tube in your body; a medical condition resulting from this synonym blockage He had an operation to remove an obstruction in his throat. bowel/intestinal obstruction
  5. 5[uncountable] (sport) the offense of unfairly preventing a player of the other team from moving to get the ball
See the Oxford Advanced Learner's Dictionary entry: obstruction