onium

Etymology 1
From.

Noun

 * 1)  any  derived by the  of a  to the hydride of any  of the, chalcogen or  families
 * 2)  any   of these compounds

Translations

 * Chinese:
 * Cantonese: 鎓
 * Mandarin:
 * Japanese: オニウム
 * Korean: 오늄

Etymology 2
See Muonium#Nomenclature.

Noun

 * 1)  The bound pair of a particle and its antiparticle.

Translations

 * Japanese: オニウム