汉语翻译:
n. 否定, 反面, 不存在
【医】 否定, 否认词型变化:
形容词:negational英语解释:
名词 negation:

a negative statement; a statement that is a refusal or denial of some other statement

the speech act of negating

(logic) a proposition that is true if and only if another proposition is false

例句:

The author boxed the compass of negation in his article.该作者在文章中依次探讨了各种反面的意见。

Shaking the head is a sign of negation.摇头表示否认。

This theory is a negation of all traditional beliefs.这理论否定了一切传统信念。

详细解释:
ne.ga.tion
n.(名词)
The act or process of negating.
否定:否认的行为或程序
A denial, contradiction, or negative statement.
否定,反对或否定的原则
The opposite or absence of something regarded as actual, positive, or affirmative.
不存在:被认作为事实的,积极的或肯定的事物的反义词或缺乏
【引伸】
nega.tional
adj.(形容词)