Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. One that obstructs; an obstacle. See Synonyms at obstacle.
  • n. The act or an instance of obstructing.
  • n. The condition of being obstructed.
  • n. The act of causing a delay or an attempt to cause a delay in the conduct of business, especially in a legislative body.
  • n. Sports The act of impeding another player in a match or race.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The act of obstructing, or state of being obstructed.
  • n. That which obstructs or impedes; an obstacle; an impediment; a hindrance.
  • n. The condition of having the natural powers obstructed in their usual course; the arrest of the vital functions; death.

from the GNU version of the Collaborative International Dictionary of English

  • n. The act of obstructing, or state of being obstructed.
  • n. That which obstructs or impedes; an obstacle; an impediment; a hindrance.
  • n. The condition of having the natural powers obstructed in their usual course; the arrest of the vital functions; death.

from The Century Dictionary and Cyclopedia

  • n. The act of obstructing, blocking up, or impeding passage, or the fact of being obstructed; the act of impeding passage or movement; a stopping or retarding: as, the obstruction of a road or thoroughfare by felled trees; the obstruction of one's progress or movements.
  • n. That with which a passage is blocked or progress or action of any kind hindered or impeded; anything that stops, closes, or bars the way; obstacle; impediment; hindrance: as, obstructions to navigation; an obstruction to progress.
  • n. Stoppage of the vital function; death.
  • n. Systematic and persistent factious opposition, especially in a legislative body; factious attempts to hinder, delay, defeat, or annoy.
  • n. Synonyms Difficulty, Impediment, etc. (see obstacle), bar, barrier.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. something immaterial that stands in the way and must be circumvented or surmounted
  • n. getting in someone's way
  • n. any structure that makes progress difficult
  • n. the act of obstructing
  • n. the physical condition of blocking or filling a passage with an obstruction

Etymologies

From Latin obstructio ("hindrance"), from obstruo ("build against, block, stop") (Wiktionary)

Examples

  • Hutchison, claiming to be a supporter of the death penalty, is criticizing Perry for what she calls obstruction of an investigation into the execution of a child murderer in 2004.

    American Thinker

  • Subpulmonic and supravalvar pulmonic stenosis do not get better with balloon dilation, and will require surgery if the amount of obstruction is moderate or severe.

    Pulmonary Stenosis

  • Subaortic and supravalvar stenosis do not get better with balloon dilation, and will require surgery if the amount of obstruction is moderate or severe, or, with subaortic stenosis, the aortic valve begins to leak significantly.

    Aortic Stenosis

  • However, if the obstruction is related to underlying chromosomal or genetic conditions, the risk of recurrence equals the risk of recurrence of the underlying condition.

    Lower Urinary Tract Obstruction (LUTO)

  • Placing a shunt (a small, flexible tube) into the fetal bladder to provide continuous drainage when a obstruction is present.

    Glossary

  • Zhang EY, Stein R, Chang S, Zheng Y, Zderic SA, Wein AJ, Chacko S: Smooth muscle hypertrophy following partial bladder outlet obstruction is associated with overexpression of non-muscle caldesmon.

    Publications of the Urology Division

  • Associated Press Defense Secretary Robert Gates has singled out the PLA as the main obstruction in the way of improved bilateral relations.

    Pentagon Reaches Out to China's Military

  • Mr. Gates has singled out the PLA as the main obstruction in the way of improved bilateral relations.

    Pentagon Reaches Out to China's Military

  • Call it fear-mongering, call it obstruction, call it fantasy.

    Women sharply disagree with mammogram recommendation

  • They will keep obstructing just to make you look bad, but when their obstruction is based on provable lies (which much of the time it is) you need to make them accountable.

    Obama touts financial reform, says GOP stance 'deceptive'

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