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Beginning
1
English
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1.1
Etymology
1.2
Noun
1.2.1
Hypernyms
1.3
See also
1.4
References
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helionium
1 language
Malagasy
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From Wiktionary, the free dictionary
English
[
edit
]
Etymology
[
edit
]
(
helion-antihelion pair
)
:
helium
+
-onium
Noun
[
edit
]
helionium
(
plural
helionia
)
Any
atomic
system containing a
helium
nucleus
and an
antihelium
nucleus.
Hypernyms
[
edit
]
exotic atom
helion-antihelion pair
onium
See also
[
edit
]
antihelion
helion
helium-3
helonium
References
[
edit
]
(
helion-anithelion pair
)
:
onium
on Wikipedia.
Wikipedia
Categories
:
English terms suffixed with -onium
English lemmas
English nouns
English countable nouns
English nouns with irregular plurals
en:Antimatter
en:Helium
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