aberration

ab•er•ra•tion n. [countable]

a way of behaving or acting that deviates from the usual or normal way:A warm spell is an aberration in winter.

ab•er•rant adj.
ab•er•ra•tion•al,adj.

ab•er•ra•tion n.

the act of departing from the right, normal, or usual course.
the act of deviating from the ordinary, usual, or normal type.
deviation from truth or moral rectitude.
Psychiatrymental irregularity or disorder, esp. of a minor or temporary nature;
lapse from a sound mental state.
Astronomyapparent displacement of a heavenly body, owing to the motion of the earth in its orbit.
Opticsany disturbance of the rays of a pencil of light such that they can no longer be brought to a sharp focus or form a clear image.
Photographya defect in a camera lens or lens system, due to flaws in design, material, or construction, that can distort the image.

Latinaberrātiōn- (stem ofaberrātiō), equivalent. toaberrāt(us), past participle ofaberrāre (seeaberrant) +-iōn- -ion
1585–95

ab′er•ra′tion•al,adj.

Collins Concise English Dictionary © HarperCollins Publishers::

aberration/ˌæbəˈreɪʃən/n

deviation from what is normal, expected, or usual
departure from truth, morality, etc
a lapse in control of one's mental faculties
a defect in a lens or mirror that causes the formation of either a distorted image or one with coloured fringes
See alsospherical aberration,chromatic aberration
the apparent displacement of a celestial body due to the finite speed of light and the motion of the observer with the earth

'aberration' also found in these entries (note: many are not synonyms or translations):

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