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Pronunciation varies by accent · noun
A breathing gas composed of hydrogen and oxygen used for its lighter weight than air..
Use hydrox when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Hydrox means A breathing gas composed of hydrogen and oxygen used for its lighter weight than air..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use hydrox where its definition matches the intended context.
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