— cationic /kat'uy on"ik/ , adj. — cationically , adv.
/kat"uy'euhn, -on/ , n. Physical Chem.
1. a positively charged ion that is attracted to the cathode in electrolysis.
2. any positively charged atom or group of atoms (opposed to anion ).
Also, kation .
[ 1825-35; katión going down (neut. of katión, prp. of kateînai ), equiv. to kat- CAT- + -i- go + -on neut. prp. suffix ]