Ionium

== Latin == === Pronunciation === (Classical Latin) IPA(key): [iːˈoː.ni.ũː], [iːˈɔ.ni.ũː] (modern Italianate Ecclesiastical) IPA(key): [iˈɔː.ni.um] === Adjective === Īō̆nium inflection of Īō̆nius: nominative/accusative/vocative neuter singular accusative masculine singular