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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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.anionic - a class of synthetic detergents in which the molecules do not ionize in aqueous solutionsanionic - a class of synthetic detergents in which the molecules do not ionize in aqueous solutions
detergent - a surface-active chemical widely used in industry and laundering
Adj.1.anionic - of or relating to anions
cationic - of or relating to cations
References in periodicals archive ?
Project Name: Anionic chromatograph-three year action plan of the shanghai center for disease control and prevention (fourth)
A polymer composition comprising a polymer having multiple anionic functional groups and a polymer having multiple nitrogenated functional groups each represented by formula (1).
Ion chromatography is a widely used analytical technique for the separation and determination of anionic and cationic analytes in various sample matrices.
It is comprised of at least one adhesion promoter; wherein at least one adhesion promoter comprises an organic molecule with a hydrophobic residual and a polyethoxy residual including 15 to 55 ethoxy groups; at least one surfactant selected from the group consisting of anionic, nonionic, cationic, amphoteric, zwitterionic and combinations thereof; mineral oil; water; linear primary alcohols; and at least one solvent.
A liquid surfactant composition comprising: an anionic surfactant, wherein the anionic surfactant is present in an amount from about 50% (by weight of the composition) to about 99.
The Surf Tropical Lily and Ylang Ylang contains: |15-30% anionic surfactants, nonionic surfactants, soap; |Less than 5% enzymes, optical brighteners, perfume, phosphonates, butylphenyl, methylpropional, citronellol, geraniol, hexyl cinnamal, limonene and linalool.
The anionic Superfloc A110 has an 18% hydrolysis rate (18% units are hydrolysed and negatively charged).
Anionic surfactants dominated the global market in terms of volume with 7,080 kilotons in 2013, followed by non-ionic surfactants, which were 6,224 kilotons for the same year.
6-9) Acrylamide has the unique ability to form high-molecular weight polymers (> 1 million Da), to react with a variety of co-monomers to produce cationic, anionic, nonionic, amphoteric, or zwitterionic polymers, and to produce specialized polymers available through derivatization.
The structural formula of PPy is given as Scheme 1 in which A-indicates the anionic ion coming from oxidants or additives.
The authors begin by discussing the history of the discovery of these compounds in the 1980s and move on to cover the use of amphiphilic, anionic and cationic AMPs to facilitate cell death in microbes.