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1
English
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1.1
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1.2
Noun
1.2.1
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grey hydrogen
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From Wiktionary, the free dictionary
English
[
edit
]
Alternative forms
[
edit
]
gray hydrogen
Noun
[
edit
]
grey
hydrogen
(
uncountable
)
Alternative form of
gray hydrogen
Derived terms
[
edit
]
grey ammonia
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