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Pronunciation varies by accent · noun
An experimental anticancer drug that is activated to a toxic radical only at very low levels of oxygen..
Use tirapazamine when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Tirapazamine means An experimental anticancer drug that is activated to a toxic radical only at very low levels of oxygen..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use tirapazamine where its definition matches the intended context.
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