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Pronunciation varies by accent · noun
(inorganic chemistry) Any oxide containing fifteen atoms of oxygen per molecule, O₁₅..
Use pentadecaoxide when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Pentadecaoxide means (inorganic chemistry) Any oxide containing fifteen atoms of oxygen per molecule, O₁₅..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use pentadecaoxide where its definition matches the intended context.
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