aberrantion的基本意思是“偏差”，一是偏离“正”，即偏离真理，偏离真实，偏离事实；二是偏离“常”，即偏离常轨，简言之即“偏离正常”，多用于思想、行为、道德等方面。可用作不可数名词，也可用作可数名词。
aberrantion也可指“偏离正常的人或事”，这时用作可数名词。
aberrant用作术语生物学上指“畸形；畸变”；医学上指“（轻度的）心理失常”；物理学上指“像差，色差”；天文学上指“光行差”。

1. Single people are treated as an aberration and made to pay a supplement.

独身者被当成异类，而且要付一笔额外的费用。

2. It became very clear that the incident was not just an aberration, it was not just a single incident.

事实已经很清楚，这件事不是偶发的，它并不是一起孤立的事件。

3. The removal of the chromatic aberration is then of primary importance.

这时消除色差具有头等重要性.

4. The resultant defect is known as chromatic aberration.

由此而产生的缺陷叫做色差.

5. One of the principal advantages of the reflecting glass is its complete freedom from chromatic aberration.

反射望远镜主要优点之一是它完全没有色差.