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carbanion

[kahr-ban-ahy-uh n, -on] /kɑrˈbænˌaɪ ən, -ɒn/
noun
1.
an organic ion containing a negatively charged carbon atom (opposed to carbonium ion).
Origin
1933
1933; carb- + anion
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for carbanion

carbanion

/kɑːˈbænaɪən/
noun
1.
(chem) a negatively charged organic ion in which most of the negative charge is localized on a carbon atom Compare carbonium ion
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for carbanion

any member of a class of organic compounds in which a negative electrical charge is located predominantly on a carbon atom. Carbanions are formally derived from neutral organic molecules by removal of positively charged atoms or groups of atoms, and they are important chiefly as chemical intermediates-that is, as substances used in the preparation of other substances. Important industrial products, including useful plastics, are made using carbanions.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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