Definition of Ionism in US English:

Ionism

noun

  • Ionic nature, style, or character; a form or idiom characteristic of or restricted to the Ionic dialect.

Origin

Late 17th century; earliest use found in Elisha Coles. From post-classical Latin Ionismus from classical Latin Iōnes, plural noun + -ismus. Compare French ionisme.

Pronunciation

Ionism

/ˈʌɪənɪz(ə)m/