anion


Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to anion: anion exchange, anion gap

an·i·on

 (ăn′ī′ən)
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; see ei- in Indo-European roots.]

an′i·on′ic (-ŏn′ĭk) adj.
an′i·on′i·cal·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

anion

(ˈænˌaɪən)
n
(Chemistry) a negatively charged ion; an ion that is attracted to the anode during electrolysis. Compare cation
[C19: from ana- + ion]
anionic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

an•i•on

(ˈænˌaɪ ən)

n.
1. a negatively charged ion that is attracted to the anode in electrolysis.
2. any negatively charged ion (opposed to cation).
[1825–35; < Greek, neuter of aniṓn, present participle of aniénai to go up]
an`i•on′ic (-ˈɒn ɪk) adj.
an`i•on′i•cal•ly, adv.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

an·i·on

(ăn′ī′ən)
An ion that has a negative charge. Hydroxide and chloride ions are anions. Compare cation.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

anion

An ion that carries a negative charge, especially one migrating to an anode during electrolysis.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.anion - a negatively charged ion
ion - a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons
hydroxide ion, hydroxyl ion - the anion OH having one oxygen and one hydrogen atom
superoxide anion, superoxide - the univalent anion O2-; "much of the O2 supporting cellular respiration is reduced to the superoxide anion O2-"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
anioni
anion
アニオン陰イオン
anion
anion
ânion
anyon

anion

[ˈænˌaɪən] nanione m
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in periodicals archive ?
Superoxide anion donor K[O.sub.2] induced mechanical hyperalgesia, thermal hyperalgesia, paw edema, and MPO activity
The pre-validated chromatography columns can come packed with either strong cation exchangers, weak cation exchangers or strong anion exchangers, eliminating manual column packing and cleaning, according to the company.
(1-4) They can be expressed by the general formula [[[M.sup.2+.sub.1-x] [M.sup.3+.sub.x][(OH).sub.2]].sub.x+][[A.sup.-n.sub.x/n]] x m[H.sub.2]O, where the cations [M.sup.2+] and [M.sup.3+] occupy the octahedral holes in a brucite-like layer, and the anion [A.sup.n-] is located in the hydrated interlayer galleries.
Anion gap was calculated to further stratify metabolic acidosis and cases of diabetic ketoacidosis were the commonest in this category (47%).
developed an improved synthesis using an insoluble modified amine-functionalized anion exchange resin as the etherification catalyst.
One of the most common and important ROS is the superoxide anion. The tissue toxicity of superoxide anion seems to be based on its direct reactivity with numerous types of biological molecules (lipid, DNA, RNA, catecholamines, steroids, etc.).
Initial laboratory tests (Table 1) were clinically relevant for the following: arterial whole-blood pH, 7.34; [Pco.sub.2], 33 mmHg (4.4 kPa); serum bicarbonate, 18 mmol/L; serum ethanol, 10 mg/dL (2.17 mmol/L); and serum anion gap, 18 mmol/L.
Anion exchange ability, potential for sustained release, and biocompatibility of the LDHs and HDSs have made them useful in the uptake, storage, and controlled release of bioactive materials such as drugs and plant growth regulators [8-11].
Bromate (Br[O.sub.3.sup.-] anion) is a disinfection by-product (DBP) which is formed during the ozonation process of bromide containing waters.
It has extensive experience in automated plasmid preps and has always provided innovative solutions and state of the art methods in the field of plasmid midi processing based on anion exchange chromatography.
It was concluded that the anion exchange sorption was involved in removing the chromate anion from the aqueous system into the surface of activated carbon.