Definition of nonionic in English:


Syllabification: non·i·on·ic
Pronunciation: /ˌnänīˈänik


  • 1Not ionic.
    More example sentences
    • It can be shown that both ionic and non-ionic bonds contribute to the interaction.
    • Another important non-ionic hydride is also basic in water.
    • The emulsifier used can be anionic, cationic, or non-ionic.
  • 1.1(Of a detergent) not dissociating into ions in aqueous solution.
    More example sentences
    • When chaotropic agents and non-ionic detergents are present, the proteins disaggregate.
    • The precursor of pea legumin, but not the mature forms accumulated in storage vacuoles, is difficult to extract from membranes unless non-ionic detergents are used, which is an unusual feature for soluble proteins.
    • Firstly, jars were washed in a non-ionic detergent and rinsed in distilled water.

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a small amount; a little