Noun

(en noun)

The act of wandering; deviation from truth, moral rectitude; abnormal; divergence from the straight, correct, proper, normal, or from the natural state.

the aberration''' of youth'', '''''aberrations''' from theory'', '''''aberration of character

(optics) The convergence to different foci, by a lens or mirror, of rays of light emanating from one and the same point, or the deviation of such rays from a single focus; a defect in a focusing mechanism that prevents the intended focal point.

(astronomy) A small periodical change of position in the stars and other heavenly bodies, due to the combined effect of the motion of light and the motion of the observer.

A partial alienation of reason.

* Lingard:

Occasional aberrations of intellect.

* I. Taylor:

Whims, which at first are the aberrations of a single brain, pass with heat into epidemic form.

A mental disorder, especially one of a minor or temporary character.

(zoology, botany) Atypical development or structure; deviation from the normal type; an aberrant organ.

A deviation of a tissue, organ or mental functions from what is considered to be within the normal range.

Noun

(en noun)

Violent derangement of mind; madness; insanity.

Excessive or unreasonable desire; insane passion affecting one or many people; fanaticism.

* {{quote-magazine, date=2013-07-20, volume=408, issue=8845, magazine=(The Economist)

, title= The attack of the MOOCs , passage=Dotcom mania was slow in coming to higher education, but now it has the venerable industry firmly in its grip. Since the launch early last year of Udacity and Coursera, two Silicon Valley start-ups offering free education through MOOCs, massive open online courses, the ivory towers of academia have been shaken to their foundations.}}

(psychiatry) The state of abnormally elevated or irritable mood, arousal, and/or energy levels.