ob ‧ struc ‧ tion /əbˈstrʌkʃ ə n/ BrE AmE noun
1 . [uncountable and countable] when something blocks a road, passage, tube etc, or the thing that blocks it SYN blockage :
an operation to remove an obstruction from her throat
Police can remove a vehicle that is causing an obstruction.
obstruction of
an unlawful obstruction of the highway
2 . [uncountable] when someone or something prevents or delays a legal or political process
obstruction of
the obstruction of vital legislation
He was found guilty of obstruction of justice.
3 . [uncountable] an offence in football, ↑ hockey etc in which a player gets between an opponent and the ball