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catechol

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Catechol
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cat⋅e⋅chol

  [kat-i-kawl, -kol]
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–noun
a colorless, crystalline, dihydroxyl derivative of benzene, C6H6O2, the ortho isomer, used chiefly in photography, for dyeing, and as a reagent; pyrocatechol.
Origin:
1875–80; catech(u) + -ol 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Catechol
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cat·e·chin   (kāt'ĭ-kĭn')   
n.  A crystalline substance, C15H14O6, derived from catechu and used in tanning and dyeing. Also called catechol.

[catech(u) + -in.]
cat·e·chol   (kāt'ĭ-kôl', -kŏl', -kōl')   
n.  

  1. See catechin.

  2. A biologically important organic phenol, having two hydroxyl groups attached to the benzene ring.


[catech(u) + -ol1.]
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: cat·e·chol
Pronunciation: 'kat-&-"kol, -"kOl
Function: noun
1 : CATECHIN
2 : PYROCATECHOL
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

catechol cat·e·chol (kāt'ĭ-kôl', -kōl')
n.
See pyrocatechol.

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
catechol   (kāt'ĭ-kôl', -kōl')  Pronunciation Key 
A biologically important organic phenol occurring naturally in lignins and resins. It has two hydroxyl groups attached to a benzene ring. Catechol is very caustic and is used in dyeing and as a photographic developer and an antiseptic. Chemical formula: C6H6O2.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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