adjective. not converted into ions.
adjective. not ionic.
Example sentences of the word nonionic
Tide and Wisk are two of the many different brands of detergents that use nonionic surfactants.
2. Noun, singular or mass
Chemists have developed more than a thousand different surfactants, which fall into one of three categories: anionic, which are negatively charged, cationic, which are positively charged, and nonionic, which exhibit no charge.