1. to make neutral or inert; to counteract or nullify the effect of something
The antidote neutralizes the poison.
O antídoto neutraliza o veneno.
3. in chemistry, to bring a solution to pH 7 or to balance acids and bases
Add a base to neutralize the acidic solution.
Adicione uma base para neutralizar a solução ácida.
4. in military or political contexts, to prevent from taking sides or action
The diplomats worked to neutralize tensions between the nations.
Os diplomatas trabalharam para neutralizar as tensões entre as nações.