Definition from macmillandictionary.com
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They’re going to operate on an obstruction in her colon.
You will be charged with obstruction of a public footpath.
Check that there is no obstruction of the patient’s airway.
obstruction of food shipments by the rebels
She was charged with perjury and obstruction of justice.
He was criticized for his obstruction of efforts to rebuild the war-torn country.
Collett won a free kick for obstruction.