hydroniumioni

== Finnish == === Etymology === hydronium +‎ ioni === Pronunciation === IPA(key): /ˈhydroˌni.umˌioni/, [ˈhydro̞ˌni.umˌio̞ni] Rhymes: -ioni Syllabification(key): hyd‧ro‧ni‧um‧i‧o‧ni Hyphenation(key): hydro‧nium‧io‧ni === Noun === hydroniumioni (chemistry) hydronium ion ==== Declension ====