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Pronunciation varies by accent · noun
Any substance, especially an antibody, that counters the effects of an antitoxin.
Use antiantitoxin when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Antiantitoxin means Any substance, especially an antibody, that counters the effects of an antitoxin.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use antiantitoxin where its definition matches the intended context.
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