01 v. t. To act in opposition to; to hinder, defeat, or frustrate, by contrary agency or influence; as, to counteract the effect of medicines; to co…
imp. & p. p.
Counteracted; p. pr. & vb. n.
Counteracting
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1.
To act in opposition to; to hinder, defeat, or frustrate, by contrary agency or influence; as, to counteract the effect of medicines; to counteract good advice.