anion
American Heritage Dictionary:
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an·i·on
(ăn'ī'ən) 
n.
A negatively charged ion, especially the ion that migrates to an anode in electrolysis.
anionically an'i·on'i·cal·ly adv.
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.
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A negatively charged ion, i.e. an ion that is attracted to the anode in electrolysis. Compare cation.
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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; hydroxide), carbonate (CO32), and phosphate (PO43). ion; cation.
For more information on anion, visit Britannica.com.
Columbia Encyclopedia:
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anion
anion (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.
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an ion with a net negative charge; during electrolysis of a solution anions migrate towards the anode. Compare cation.
— anionic adj.
| animal protein factor, anhydrous, anhydrosugar | |
| anion channel protein, anion exchanger, anion gap |
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An ion carrying a negative charge. In an electrolytic cell anions are attracted to the positive electrode (anode).
- a.-exchange resin — see ion-exchange resin.
Random House Word Menu:
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categories related to 'anion'
- Substances, Particles, and Atomic Architecture - anion: negatively charged ion
- Electricity and Electronics - anion: negative ion drawn to anode in electrolyzed solution
Translations:
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Anion
Nederlands (Dutch)
anion (scheikunde)
Français (French)
n. - (Chim) anion
Deutsch (German)
n. - Anion, (negativ geladenes Ion)
Ελληνική (Greek)
n. - (φυσ.) ανιόν, αρνητικό ιόν
Português (Portuguese)
n. - ânion (m) (Quím.)
Español (Spanish)
n. - anión, ion negativo
中文（简体）(Chinese (Simplified))
阴离子
中文（繁體）(Chinese (Traditional))
n. - 陰離子
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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American Heritage Dictionary
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
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Oxford Dictionary of Chemistry
A Dictionary of Chemistry. Sixth Edition. Copyright © Market House Books Ltd, 2008. All rights reserved.
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The Columbia Electronic Encyclopedia, Sixth Edition Copyright © 2012, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/.
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