Word of the Day – Cation

Cation (noun)

kat-ay-on

A positively charged ion, i.e. one that would be attracted to the cathode in electrolysis. The opposite of anion

Mid 19th century: from cata- ‘alongside’ or from cathode, + ion.

Example sentences

“It is called a cation if a positive charge exists and an anion if a negative charge exists.”