neutralize

vt. 使中立, 使成中立地带, 使中和, 抵销
vi. 中立化, 变无效, 中和
【化】 中和; 抵消
【医】 中和

名词:neutralizer 动词过去式:neutralized 过去分词:neutralized 现在分词:neutralizing 第三人称单数:neutralizes 

neu.tral.ize

v.tr.（及物动词）
neu.tral.ized,neu.tral.iz.ing,neu.tral.iz.es
To make neutral.
使中立化
To counterbalance or counteract the effect of; render ineffective.
使无效：平衡或消除…作用；致使无效
To declare neutral and therefore inviolable during a war.
宣布中立：在战争中宣布独立以不致受侵扰
Chemistry
【化学】
To make (a solution) neutral.
使中性：使（溶液）呈中性
To cause (an acid or a base) to undergo neutralization.
中和：使（酸和碱）进行中和
Medicine To counteract the effect of (a drug or toxin).
【医学】 使无效：消除（药物或毒素）的作用
Slang To remove as a threat, especially by killing.
【俚语】 消除威胁，尤指以杀害的方式

【引伸】
neu.traliz.er
n.（名词）
<参考词汇><同义词>neutralize,negate,nullify,counteractThese verbs mean to make something ineffective by or as if by applying an opposite or counterbalancing force.
这些动词是指通过使用相反的或制衡的力量使事物无效。
Neutralize implies a state of ineffectiveness, inaction, or inoperativeness:
Neutralize 暗含一种无效、不起作用、不生效的状态：
例句：
.American life is a powerful solvent. It seems to neutralize every intellectual element . . . and to fuse it in the native good will, complacency, thoughtlessness, and optimism. (George Santayana).
.美国人的生活是一种强大的不断对事物进行削弱的力量，它好象在抵销一切智力因素…使其同民族精神、自信心、无私奉献精神和乐观主义精神融合起来. （乔治·桑塔亚那）。

Negate andnullify suggest cancellation of validity, force, usefulness, value, consequence, or significance:
Negate 和nullify 表示对效能、能量、用途、价值、结论或意义的废弃或推翻：
例句：
Terror momentarily negated the effects of his injury.
恐惧的人要时刻抵制伤害对他的影响。

例句：
.The [5th] Amendment nullifies sophisticated as well as simple-minded modes of discrimination. (Felix Frankfurter).
.［第5号］ 修正案削弱了复杂而又简单的歧视情绪. （菲利克斯·弗兰克弗特）。

Counteract frequently implies the opposition of forces thought of as being desirable and undesirable;it may suggest action taken as a corrective measure:
Counteract 通常指需要或不需要的相反力量，暗示一种作为修正标准的行为：
例句：
The prime minister addressed the nation in an effort to counteract the damage the scandal had done to his credibility.
首相向全国人民发表演说，以抵制丑闻给他们的荣誉造成损害