neutralize /ˈnu:trəˌlaiz, ˈnju:-/ vt. 使失效；抵消；使中立；中和：This medicine neutralizes stomach acids.这种药中和了胃酸。The soldiers tried to neutralize the attack by dividing the invading army.战士们努力通过分化侵犯者化解对方的进攻。The lands between the warring countries were neutralized.交战国之间的国家中立了。