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drainage

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drain⋅age

[drey-nij]
–noun
1. the act or process of draining.
2. a system of drains, artificial or natural.
3. drainage basin.
4. something that is drained off.
5. Surgery. the drainage of fluids, as bile, urine, etc., from the body, or of pus and other diseased products from a wound.

Origin:
1645–55; drain + -age
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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drain·age   (drā'nĭj)   
n.  
  1. The action or a method of draining.

  2. A system of drains.

  3. Something that is drained off.

  4. Medicine The removal of fluid or purulent material from a wound or body cavity.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: drain·age
Pronunciation: 'drA-nij
Function: noun
1 : the act or process of drawing off fluids from a cavity or wound by means ofsuction or gravity
2 : a process of releasing internal conflicts or pent-up feelings (as hostility or guilt)
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

drainage drain·age (drā'nĭj)
n.
The removal of fluid or purulent material from a wound or body cavity.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia

drainage

in agriculture, the artificial removal of water from land; drainage is employed in the reclamation of wetlands, in the prevention of erosion, and as a concomitant of irrigation in the agriculture of arid regions

Learn more about drainage with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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