Definition of obstruction noun from the Oxford Advanced Learner's Dictionary

     

    obstruction

     noun
    noun
    BrE BrE//əbˈstrʌkʃn//
     
    ; NAmE NAmE//əbˈstrʌkʃn//
     
    Motoring problems and accidents
     
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  1. 1[uncountable, countable] the fact of trying to prevent something/somebody 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. See related entries: Motoring problems and accidents
  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. See related entries: Motoring problems and accidents
  4. 4[countable, uncountable] (medical) 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 offence of unfairly preventing a player of the other team from moving to get the ball
  6. Word Origin mid 16th cent.: from Latin obstructio(n-), from the verb obstruere, from ob- ‘against’ + struere ‘build, pile up’.Extra examples She was charged with obstruction of justice. The asylum seekers had to contend with continued bureaucratic obstruction. The car had been parked in front of the entrance, causing an obstruction. If the tractor hit an obstruction, there was little to stop the driver from falling off. The train driver receives a warning if there’s an obstruction on the line ahead.
See the Oxford Advanced American Dictionary entry: obstruction