Meaning & use
anionic
Last updated
relating to or having the properties of an anion, a negatively charged ion
See it in a sentence
Anionic surfactants are common in shampoos because they help lift away oil and dirt.
The chemist measured how the anionic compound behaved in an electric field.
A note on using this word
Contrasts with 'cationic,' which refers to positively charged ions; commonly seen on product labels for detergents and cosmetics as well as in chemistry.
Words with an opposite meaning
cationic
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