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1
English
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1.1
Noun
1.1.1
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trihelium
1 language
Malagasy
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From Wiktionary, the free dictionary
English
[
edit
]
Noun
[
edit
]
trihelium
(
uncountable
)
A
molecule
composed of three
helium
atoms
, or matter composed of such molecules. Symbol: He
3
.
Synonyms
[
edit
]
helium
trimer
triatomic
helium
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