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citrin

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cit⋅rin

[si-trin]
–noun Biochemistry.
bioflavonoid.

Origin:
1935–40; < G Citrin; see citrus, -in 2

bi⋅o⋅fla⋅vo⋅noid

[bahy-oh-fley-vuh-noid]
–noun Biochemistry.
any of a group of water-soluble yellow compounds, present in citrus fruits, rose hips, and other plants, that in mammals maintain the resistance of capillary walls to permeation and change of pressure.
Also called citrin, vitamin P.


Origin:
1950–55; bio- + flavonoid any derivative of flavone ( flavone + -oid )

vitamin P

–noun
bioflavonoid.
Also called citrin.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Medical Dictionary

Main Entry: bio·fla·vo·noid
Pronunciation: "bI-O-'flA-v&-"noid
Function: noun
: a biologically active flavonoid

Main Entry: cit·rin
Pronunciation: 'si-tr&n
Function: noun
: a crystalline water-soluble flavonoid concentrate that was orig. prepared from lemonsand is used as a source of bioflavonoids

Main Entry: vitamin P
Function: noun
: a substance or mixture of substances obtained from various plant sources, identified as any of a number of substances (as citrin ora mixture of bioflavonoids), and formerly held to be useful in reducing the extent of hemorrhage but never precisely characterized chemically or proved to have the effects claimed for it
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

vitamin P n.
A water-soluble vitamin, found as a crystalline substance especially in citrus juices, that functions as a bioflavonoid in promoting capillary resistance to hemorrhaging. Also called capillary permeability factor.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
bioflavonoid   (bī'ō-flā'və-noid')  Pronunciation Key 
See flavonoid.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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