adj.
Pronunciation: ˌ kat-( ˌ ) ī - ' ä-nik, ˌ ka-( ˌ )t ī -
Function: adjective
Date: circa 1920
1 : of, relating to, or being a cation
2 : characterized by an active and especially surface-active cation <a cationic dye>
– cat · ion · i · cal · ly \ -ni-k( ə -)l ē \ adverb