drain

[dreyn]
verb (used with object)
1.
to withdraw or draw off (a liquid) gradually; remove slowly or by degrees, as by filtration: to drain oil from a crankcase.
2.
to withdraw liquid gradually from; make empty or dry by drawing off liquid: to drain a crankcase.
3.
to exhaust the resources of: to drain the treasury.
4.
to deprive of strength; tire.
verb (used without object)
5.
to flow off gradually.
6.
to become empty or dry by the gradual flowing off of liquid or moisture: This land drains into the Mississippi.
noun
7.
something, as a pipe or conduit, by which a liquid drains.
8.
Surgery. a material or appliance for maintaining the opening of a wound to permit free exit of fluids.
9.
gradual or continuous outflow, withdrawal, or expenditure.
10.
something that causes a large or continuous outflow, expenditure, or depletion: Medical expenses were a major drain on his bank account.
11.
an act of draining.
12.
Physical Geography.
a.
an artificial watercourse, as a ditch or trench.
b.
a natural watercourse modified to increase its flow of water.
Idioms
13.
go down the drain,
a.
to become worthless or profitless.
b.
to go out of existence; disappear.

Origin:
before 1000; Middle English dreynen, Old English drēhnian, drēahnian to strain, filter; akin to dry

drainable, adjective
drainer, noun
overdrain, verb
undrainable, adjective
undrained, adjective
well-drained, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
drain (dreɪn)
 
n
1.  a pipe or channel that carries off water, sewage, etc
2.  an instance or cause of continuous diminution in resources or energy; depletion
3.  surgery a device, such as a tube, for insertion into a wound, incision, or bodily cavity to drain off pus, etc
4.  electronics the electrode region in a field-effect transistor into which majority carriers flow from the interelectrode conductivity channel
5.  down the drain wasted
 
vb (often foll by off) (often foll by away)
6.  to draw off or remove (liquid) from: to drain water from vegetables; to drain vegetables
7.  to flow (away) or filter (off)
8.  (intr) to dry or be emptied as a result of liquid running off or flowing away: leave the dishes to drain
9.  (tr) to drink the entire contents of (a glass, cup, etc)
10.  (tr) to consume or make constant demands on (resources, energy, etc); exhaust; sap
11.  (intr) to disappear or leave, esp gradually: the colour drained from his face
12.  (tr) (of a river, etc) to carry off the surface water from (an area)
13.  (intr) (of an area) to discharge its surface water into rivers, streams, etc
 
[Old English drēahnian; related to Old Norse drangr dry wood; see dry]
 
'drainable
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

drain
O.E. dreahnian, from P.Gmc. *draug-, source of "drought, dry," giving the English word originally a sense of "make dry." Figurative meaning of "exhaust" is attested from 1650s. Related: Drained; draining. The noun is from 1550s.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

drain (drān)
n.
A device, such as a tube, inserted into the opening of a wound or into a body or dental cavity to facilitate discharge of fluid or purulent material. v. drained, drain·ing, drains
To draw off a liquid gradually as it forms.

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

drain

v. [IBM] Syn. for flush (sense 2). Has a connotation of finality about it; one speaks of draining a device before taking it offline.
FOLDOC
Computing Dictionary

drain definition

jargon
(IBM) To allow a system to complete the processing of its current work before the system becomes unavailable. E.g. draining a device before taking it off-line or telling a web server in a server farm not to accept any new requests but to finish processing any requests it has already accepted.
[Jargon File]
(2005-07-18)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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American Heritage
Idioms & Phrases

drain

see brain drain; down the drain.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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Example sentences
Remove from the oil and drain on absorbent paper towels.
Pour milk and butter into strainer and let drain briefly.
Then, remove the hose and let the excess fluid in the hose drain back into the
  source.
Drain through a strainer, and rinse until the water runs clear.
Idioms & Phrases
Images for drain
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