verb (used with object), ob·tu·rat·ed, ob·tu·rat·ing.

  1. to stop up; close.
  2. Ordnance. to close (a hole or cavity) so as to prevent a flow of gas through it, especially the escape of explosive gas from a gun tube during firing.


  1. (tr) to stop up (an opening, esp the breech of a gun)


  1. To close or obstruct.

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