helium hydride

Noun

 * 1)   The unstable binary cation HeH$+$ present in interstellar space. It is the strongest acid, reactive with every chemical species except positive ions, including electrons.

Synonyms

 * HeH+
 * hydridohelium(1+)
 * hydridohelium
 * hydridohelium ion
 * hydridohelium cation
 * helium hydride cation
 * helium hydride ion
 * hydrogen heliumide
 * hydrogen heliumide ion
 * hydrogen heliumide cation
 * hydrogen helide
 * hydrogen helide ion
 * hydrogen helide cation

Hypernyms

 * acid
 * cation
 * ion

Translations

 * Finnish: heliumhydridi
 * German: Heliumhydrid