obstruction

[uhb-struhk-shuhn]
noun
1.
something that obstructs, blocks, or closes up with an obstacle or obstacles; obstacle or hindrance: obstructions to navigation.
2.
an act or instance of obstructing.
3.
the state of being obstructed.
4.
the delaying or preventing of business before a deliberative body, especially a legislative group, by parliamentary contrivances.

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

preobstruction, noun


1. barrier, bar, impediment. See obstacle. 3. stoppage.


1, 3. encouragement.
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World English Dictionary
obstruction (əbˈstrʌkʃən)
 
n
1.  a person or thing that obstructs
2.  the act or an instance of obstructing
3.  delay of business, esp in a legislature by means of procedural devices
4.  sport the act of unfairly impeding an opposing player
5.  the state or condition of being obstructed
 
ob'structional
 
adj
 
ob'structionally
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

obstruction
1530s, from L. obstructionem (nom. obstructio) "a building up," from obstructus, pp. of obstruere "block up, build up, hinder," from ob "against" + struere "to pile, build" (see structure).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

obstruction ob·struc·tion (əb-strŭk'shən, ŏb-)
n.

  1. The blocking of a body passage, as by clogging or stricture.

  2. The state of being obstructed.

  3. 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.
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Example sentences
Every advance was followed by slippage and obstruction before, at long last,
  the job was done.
In the next moment, the obstruction in question shot out of the line with fire
  hose ferocity.
Keep the exhausts and intakes free from obstruction.
The goal is to study the ebb and flow of the shower free of any cloud
  obstruction and light pollution.
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