A tremulous uncertainty of the action of all her limbs soon became a part of her regular state, and afterwards, at intervals of two or three months, she would often put her hands to her head, and would then remain for about a week at a time in some gloomy aberration of mind.
There are no more uses of "aberration" in the book.
Show samples from other sources
The outburst was an aberration, out of keeping with her character.
At that moment she cannot have been in her right mind; yet, what was the cause of her temporary aberration I cannot say.