obstruction

(redirected from Chronic airway obstruction)
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Related to Chronic airway obstruction: COPD, Chronic obstructive lung disease

obstruction

Politics delay of business, esp in a legislature by means of procedural devices
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

obstruction

[əb′strək·shən]
(medicine)
Occlusion or stenosis of hollow viscera, ducts, and vessels.
(navigation)
Anything that hinders or prevents movement, particularly anything that endangers or prevents passage of a vessel or aircraft; usually refers to an isolated danger to navigation, such as a submerged rock or pinnacle in the case of marine navigation, and a tower, tall building, mountain peak, and so forth, in the case of air navigation.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

obstruction

obstruction
Obstructions are marked by orange and white colours as well as by lights.
An existing object, object of natural growth, or terrain that is hazardous to an aircraft if the obstruction is on or near the runway or in the flight path. For purposes of certification, an object becomes an obstruction if its height is 35 ft (10.7 m) or 50 ft (15 m).
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
The results were similar in patients over age 65 years, although the comorbidity rate was somewhat higher: 30.1% for those with skin infection, 26.6% for those with pneumonia, 23.4% for those with bronchitis, and 22.3% for those with chronic airway obstruction.
Tobacco is now known to cause 16 percent of all deaths in the U.S.--deaths from lung and larynx cancer, heart disease, circulatory disorders, pneumonia, influenza, bronchitis, emphysema, and chronic airway obstruction, not to mention deaths of infants whose mothers smoked while pregnant and of non-smokers through passive smoking.
Chronic airway obstruction is an important and rapidly increasing problem in different parts of the world.

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