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Pronunciation varies by accent · noun
An impurity found in some batches of malathion, significantly more toxic to humans than malathion..
Use isomalathion when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Isomalathion means An impurity found in some batches of malathion, significantly more toxic to humans than malathion..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use isomalathion where its definition matches the intended context.
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