- The definition of an aberration is something that is abnormal or unexpected such as a strange action or mental state.
An example of a mental aberration is schizophrenia.
- a departure from what is right, true, correct, etc.
- a deviation from the normal or the typical
- mental derangement or lapse
- Astron. a small, periodic apparent change in the observed position of a celestial object, caused by the constantly changing position of the earth and the finite speed of the object's light
- the failure of light rays from one point to converge at a single focus
- a fault in a lens or mirror causing such failure
Origin of aberrationClassical Latin abberatio ; from aberrare: see aberrant
- A deviation from what is considered proper or normal. See Synonyms at deviation.
- A departure from what is typical: an election that was an aberration from usual state politics.
- Psychology A disorder or abnormal alteration in one's mental state.
- a. A defect of focus, such as blurring in an image.b. An imperfect image caused by a physical defect in an optical element, as in a lens.
- The apparent displacement of the position of a celestial body in the direction of motion of an observer on Earth, caused by the motion of Earth and the finite velocity of light.
- Genetics A deviation in the normal structure or number of chromosomes in an organism.
Origin of aberrationLatin aberrātiō, aberrātiōn-, diversion, from aberrātus, past participle of aberrāre, to go astray : ab-, away from; see ab–1 + errāre, to stray; see ers- in Indo-European roots.
- The act of wandering; deviation from truth, moral rectitude; abnormal; divergence from the straight, correct, proper, normal, or from the natural state. [Late 16th century.]
- the aberration of youth, aberrations from theory
- (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. [Mid 18th century.]
- (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. [Mid 18th century.]
- A partial alienation of reason. [Early 19th century.]
- A mental disorder, especially one of a minor or temporary character. [Early 19th century.]
- (zoology, botany) Atypical development or structure; deviation from the normal type; an aberrant organ. [Mid 19th century.]
- (medicine) A deviation of a tissue, organ or mental functions from what is considered to be within the normal range.