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anion

  (ăn'ī'ən) pronunciation
n.

A negatively charged ion, especially the ion that migrates to an anode in electrolysis.

[From Greek, neuter present participle of anienai, to go up : ana-, ana- + ienai, to go.]

anionic an'i·on'ic (-ŏn'ĭk) adj.
anionically an'i·on'i·cal·ly adv.
 
 

A negatively charged ion.

 
(an′ī-ən)
n

A negatively charged ion.

 

Atom or group of atoms carrying a negative electric charge, indicated by a superscript minus sign after the chemical symbol. Anions in a liquid subjected to an electric field migrate toward the positive electrode (anode). Examples include hydroxyl (-OH-; see hydroxide), carbonate (-CO32-), and phosphate (-PO43-). See also ion; compare cation.

For more information on anion, visit Britannica.com.

 
(ăn'ī'ən) , atom or group of atoms carrying a negative charge. The charge results because there are more electrons than protons in the anion. Anions can be formed from nonmetals by reduction (see oxidation and reduction) or from neutral acids (see acids and bases) or polar compounds by ionization. Anionic species include Cl, SO4−−, and CH3COO. Highly colored intermediates in organic reactions are often radical anions (anions containing an unpaired electron). Salts are made up of anions and cations. See ion.


 

An ion carrying a negative charge. In an electrolytic cell anions are attracted to the positive electrode (anode).

 
Translations: Translations for: Anion

Dansk (Danish)
n. - anion

Nederlands (Dutch)
anion (scheikunde)

Français (French)
n. - (Chim) anion

Deutsch (German)
n. - Anion, (negativ geladenes Ion)

Ελληνική (Greek)
n. - (φυσ.) ανιόν, αρνητικό ιόν

Italiano (Italian)
anione

Português (Portuguese)
n. - ânion (m) (Quím.)

Русский (Russian)
анион

Español (Spanish)
n. - anión, ion negativo

Svenska (Swedish)
n. - anjon

中文(简体) (Chinese (Simplified))
阴离子

中文(繁體) (Chinese (Traditional))
n. - 陰離子

한국어 (Korean)
n. - 음이온

日本語 (Japanese)
n. - アニオン, 陰イオン

العربيه (Arabic)
‏(الاسم) الأنيون : أيون سالب الشحنه‏

עברית (Hebrew)
n. - ‮יון שלילי, אניון‬


 
 

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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
Food and Nutrition. A Dictionary of Food and Nutrition. Copyright © 1995, 2003, 2005 by A. E. Bender and D. A. Bender. All rights reserved.  Read more
Dental Dictionary. Mosby's Dental Dictionary. Copyright © 2004 by Elsevier, Inc. All rights reserved.  Read more
Britannica Concise Encyclopedia. Britannica Concise Encyclopedia. © 2006 Encyclopædia Britannica, Inc. All rights reserved.  Read more
Columbia Encyclopedia. The Columbia Electronic Encyclopedia, Sixth Edition Copyright © 2003, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/  Read more
Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved.  Read more
Translations. Copyright © 2007, WizCom Technologies Ltd. All rights reserved.  Read more

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