oxonium

Noun

 * 1)  Any univalent oxygen cation derived from water, the simplest of which is the hydronium ion (H3O+).

Translations

 * Catalan: oxoni
 * Finnish:
 * German: Oxonium
 * Italian:
 * Japanese: オキソニウム
 * Spanish: oxonio

Noun

 * 1)  hydronium