aindexantihelium./an-tee-hee-lee-uhm, an-tahy-/US // ˌæn tiˈhi li əm, ˌæn taɪ- //反氦气,抗氦气,反氦,反氦气机Definitionsn.noun · 名词1. Physics.›the antimatter counterpart to helium.Level 5More words in a →