[ uhb-struhk-shuhn ]
/ əbˈstrʌk ʃən /


something that obstructs, blocks, or closes up with an obstacle or obstacles; obstacle or hindrance: obstructions to navigation.
an act or instance of obstructing.
the state of being obstructed.
the delaying or preventing of business before a deliberative body, especially a legislative group, by parliamentary contrivances.

Origin of obstruction

1525–35; < Latin obstructiōn- (stem of obstructiō) barrier. See obstruct, -ion

Related forms

pre·ob·struc·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for obstruction

British Dictionary definitions for obstruction


/ (əbˈstrʌkʃən) /


a person or thing that obstructs
the act or an instance of obstructing
delay of business, esp in a legislature by means of procedural devices
sport the act of unfairly impeding an opposing player
the state or condition of being obstructed

Derived Forms

obstructional, adjectiveobstructionally, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for obstruction


[ əb-strŭkshən, ŏb- ]


The blocking of a body passage, as by clogging or stricture.
The state of being obstructed.
Something, such as a mass or stricture, that obstructs.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.