verb (used without object), bled [bled] , bleeding.
to lose blood from the vascular system, either internally into the body or externally through a natural orifice or break in the skin: to bleed from the mouth.
(of injured tissue, excrescences, etc.) to exude blood: a wart that is bleeding.
(of a plant) to exude sap, resin, etc., from a wound.
(of dye or paint) to run or become diffused: All the colors bled when the dress was washed.
(of a liquid) to ooze or flow out.
to feel pity, sorrow, or anguish: My heart bleeds for you. A nation bleeds for its dead heroes.
to suffer wounds or death, as in battle: The soldiers bled for the cause.
(of a broadcast signal) to interfere with another signal: CB transmissions bleeding over into walkie-talkies.
Printing. (of printed matter) to run off the edges of a page, either by design or through mutilation caused by too close trimming.
Slang. to pay out money, as when overcharged or threatened with extortion.
Metallurgy. (of a cooling ingot or casting) to have molten metal force its way through the solidified exterior because of internal gas pressure.
verb (used with object), bled [bled] , bleeding.
to cause to lose blood, especially surgically: Doctors no longer bleed their patients to reduce fever.
to lose or emit (blood or sap).
to drain or draw sap, water, electricity, etc., from (something): to bleed a pipeline of excess air.
to remove trapped air from (as an automotive brake system) by opening a bleeder valve.
to obtain an excessive amount from; extort money from.
to permit (printed illustrations or ornamentation) to run off the page or sheet.
to trim the margin of (a book or sheet) so closely as to mutilate the text or illustration.
a sheet or page margin trimmed so as to mutilate the text or illustration.
a part thus trimmed off.
Medicine/Medical. an instance of bleeding; hemorrhage: an intracranial bleed.
Printing. characterized by bleeding: a bleed page.
Verb phrases
bleed off, to draw or extract: to bleed off sap from a maple tree; to bleed off static electricity.
bleed white. white ( def 41 ).

before 1000; Middle English bleden, Old English blēdan, derivative of blōd blood

outbleed, verb (used with object), outbled, outbleeding.
unbled, adjective

bled, bleed, blood. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
bleed (bliːd)
vb , bleeds, bleeding, bled
1.  (intr) to lose or emit blood
2.  (tr) to remove or draw blood from (a person or animal)
3.  (intr) to be injured or die, as for a cause or one's country
4.  (of plants) to exude (sap or resin), esp from a cut
5.  informal (tr) to obtain relatively large amounts of money, goods, etc, esp by extortion
6.  (tr) to draw liquid or gas from (a container or enclosed system): to bleed the hydraulic brakes
7.  (intr) (of dye or paint) to run or become mixed, as when wet
8.  to print or be printed so that text, illustrations, etc, run off the trimmed page
9.  (tr) to trim (the edges of a printed sheet) so closely as to cut off some of the printed matter
10.  (intr) civil engineering, building trades (of a mixture) to exude (a liquid) during compaction, such as water from cement
11.  bleed someone or something dry to extort gradually all the resources of a person or thing
12.  one's heart bleeds used to express sympathetic grief, but often used ironically
13.  printing
 a.  an illustration or sheet trimmed so that some matter is bled
 b.  (as modifier): a bleed page
14.  printing the trimmings of a sheet that has been bled
[Old English blēdan; see blood]

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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Word Origin & History

O.E. bledan "to bleed, to let blood," from P.Gmc. *blothjan "emit blood" (cf. O.N. blæða, Ger. bluten), from *blotham "blood" (see blood).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

bleed (blēd)
v. bled (blěd), bleed·ing, bleeds

  1. To lose blood as a result of rupture or severance of blood vessels.

  2. To take or remove blood from.

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


In addition to the idiom beginning with bleed, also see my heart bleeds for you.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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Example sentences
No dividing line was clearly drawn, causing the elements to bleed into each
  other, as blood brothers bound forever by their oath.
If you bleed in deep water your blood will actually look green.
The nose contains many small blood vessels that bleed easily.
When you bleed, the body launches a series of reactions that help the blood
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