Definitions

1. noun

A positively charged ion derived from an acid.

“The experiment produced a cation and an anion, which attracted each other.”

2. noun

A compound that is formed by the combination of a metal with oxygen or a metal with a nonmetal.

“Cations are often found in ionic compounds, such as sodium chloride.”

3. noun

A positively charged particle that results from the transfer of a proton or the loss of an electron.

“The cation had a charge of +3 and interacted with the anion to form a neutral molecule.”