anionic
adjective
an·ion·ic ˌa-(ˌ)nī-ˈä-nik 
1
: of or relating to anions
2
: characterized by an active and especially surface-active anion
Example Sentences
Recent Examples on the Web The cationic molecules in this detergent work to pull out the anionic sweat and bacteria particles in our clothes like a magnet. 
Sarah Madaus, SELF, 11 Sep. 2020
Sarah Madaus, SELF, 11 Sep. 2020 Word History
First Known Use
1903, in the meaning defined at sense 1
Medical Definition
anionic
adjective
an·ion·ic ˌan-(ˌ)ī-ˈän-ik
1
: of or relating to anions
2
: characterized by an active and especially surface-active anion