noun

ion

ion

A positive ion is called a cation.

A positive ion is called a cation.

An ion has an electrical charge.

An ion has an electrical charge.

((adjective)) ion (a positive ion) A positive ion is called a cation.

Synonyms: atom, molecule, particle

From Greek 'ion', present participle of 'ienai' meaning 'to go'. An ion is a 'goer'.

Think of an 'I' on the move, carrying a charge.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.