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Pronunciation varies by accent · noun
Any of several toxic antibiotics, derived from the soil bacterium Bacillus polymyxa, used to treat infections by gram-negative bacteria.
Use polymyxin when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Polymyxin means Any of several toxic antibiotics, derived from the soil bacterium Bacillus polymyxa, used to treat infections by gram-negative bacteria.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use polymyxin where its definition matches the intended context.
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