- (Brazil) IPA(key): /iˈdɾõ.ni.u/ [iˈdɾõ.nɪ.u], (faster pronunciation) /iˈdɾõ.nju/
- (Brazil) IPA(key): /iˈdɾõ.ni.u/ [iˈdɾõ.nɪ.u], (faster pronunciation) /iˈdɾõ.nju/
- (Southern Brazil) IPA(key): /iˈdɾo.ni.o/ [iˈdɾo.nɪ.o], (faster pronunciation) /iˈdɾo.njo/
hidrônio m (plural hidrônios)
- (chemistry) hydronium