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1. the act of blocking or clogging.
2. the state or condition of being clogged; see also atresia. Called also blockade, closure, and occlusion.
chronic airflow obstruction (chronic airway obstruction) name given to a group of disorders in which the upper or lower airways are chronically obstructed; it includes chronic bronchitis, asthma, emphysema, pneumoconiosis, and any other type of chronic obstructive pulmonary disease.
intestinal obstruction see intestinal obstruction.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


Blockage, clogging, or impeded flow, for example, by occlusion or stenosis.
[L. obstructio]
Farlex Partner Medical Dictionary © Farlex 2012


A blocking or clogging of a tube or vessel. See Ball-valve obstruction, Biliary obstruction, Bladder outlet obstruction, Bowel obstruction, Bypass obstruction, Nasal obstruction, UPJ obstruction.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


Blockage or clogging, e.g., by occlusion or stenosis.
[L. obstructio]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


A blockage that prevents movement.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.


Blockage, clogging, or impeded flow.
[L. obstructio]
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about obstruction

Q. I recently had my surgery for bowel obstruction? I recently had my surgery for bowel obstruction? None of the diet was restricted for me by doctor but should I go for any special diet.

A. I had surgery in 08/08 during having a c-section and hernia repair, and I'm having diarrhea all the time. I don't know what to eat nor what medicines to take. Only Immodium AD helps temporary. If I have an appointment, I don't eat breakfast or lunch. I come home and eat dinner. About 30 minutes after eating, I'm in the bathroom. Can someone help me please? I have to return back to work next month, and I don't want to be in the bathroom more than I am at my desk.

Q. (COPD)chronic obstructive pulmonary disease the main causes of?

A. Mainly smoking, although ambient air pollution and industrial exposure to dust have also been implicated as causes.

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References in periodicals archive ?
The finest obstacle runners from Australia, Malaysia, Thailand, Guam, Hong Kong, Singapore, Indonesia, Marianas and Vietnam are entered in the races that serve as the test event for the SEA Games..
Set over a 15-degree incline with 25 indoor and outdoor obstacles to conquer, the 5km course will feel more like a 10km expedition, organisers say.
Sheikh Hamdan continued the games through all the obstacles with great spirit despite getting injured and pushed his team to keep the first place until the end of the day.
For now, Kelso said the venue for the obstacle training course is being checked to ensure it is safe.
Philippine Olympic Committee (POC) president Ricky Vargas, who graced the occasion, said that he expects the POSF to win the gold medal in all six events of obstacle sports in the SEA Games.
This was also the first ever Trifecta Weekend in the Middle East with four race categories being held: Beast (21+ km and 30+ obstacles), Super (13+ km and 25+ obstacles), Sprint (5+ km and 20+ obstacles) as well as the Kids race which has three levels - 4-6 years (800m), 7-9 years (1.6km) and 10-14 (3.2km).
"It's a muddy obstacle course that women of any ability can climb over, crawl under, and charge through.
Fuzzy algorithm for obstacle classification under information gathered with range imaging device was developed in [8].
Obstacle avoidance is one of the essential technologies in local path planning and one of the critical technologies that guarantees human and vehicle safety.
Tough Mudder Full is a 10-12 mile mud and obstacle course designed to pull participants out of their comfort zone.
Subjects were fitted with eye trackers to record where they looked and motion analysis sensors to record how they walked as they used a phone while negotiating an obstacle similar in height to a roadside kerb.
Researchers from Anglia Ruskin University found that when using a phone, irrespective of how it is being used, people look less frequently and for less time at the obstacle on the ground.