helionium
English
Etymology
(
helion-antihelion pair
)
:
helium
+
-onium
Noun
helionium
(
plural
helionia
)
Any
atomic
system containing a
helium
nucleus
and an
antihelium
nucleus.
Hypernyms
exotic atom
helion-antihelion pair
onium
See also
antihelion
helion
helium-3
helonium
References
(
helion-anithelion pair
)
:
onium
on Wikipedia.
Wikipedia