helium hydride (English, noun)
expansion: helium hydride (uncountable)
Senses:
topics: chemistry
inorganic-chemistry
natural-sciences
physical-sciences
glosses: Ellipsis of helium hydride cation, the unstable binary cation HeH⁺ present in interstellar space; it is the strongest acid, reactive with every chemical species except positive ions, including electrons.
tags: abbreviation
alt-of
ellipsis
uncountable
Forms: