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methylene

 
Dictionary: meth·yl·ene   (mĕth'ə-lēn') pronunciation
 
n.

A bivalent hydrocarbon radical, CH2-, a component of unsaturated hydrocarbons.

[French méthylène : Greek methu, wine + Greek hūlē, wood, substance.]


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The highly reactive carbene, :CH2. The divalent CH2 group in a compound is the methylene group.



 
Medical Dictionary: meth·yl·ene
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(mĕth'ə-lēn')
n.

A bivalent hydrocarbon radical, CH2, that is a component of unsaturated hydrocarbons and is derived from methane by the removal of two hydrogen atoms.

 
WordNet: methylene
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Note: click on a word meaning below to see its connections and related words.

The noun has one meaning:

Meaning #1: the bivalent radical CH2 derived from methane
  Synonyms: methylene group, methylene radical


 
Wikipedia: Methylene
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Methylene is a chemical species in which a carbon atom is bonded to two hydrogen atoms. Three different possibilities present themselves:

Methylene groups in a chain or ring contribute to its size and lipophilicity.

See also


 
 

 

Copyrights:

Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2007. Published by Houghton Mifflin Company. All rights reserved.  Read more
Chemistry Dictionary. A Dictionary of Chemistry. Sixth Edition. Copyright © Market House Books Ltd, 2008. All rights reserved.  Read more
Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company Read more
WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved.  Read more
Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Methylene" Read more