What is aberrations definition?

Aberrations refer to deviations or distortions from the normal or expected behavior of things, especially in the fields of optics, physics, and biology. In optics, aberrations are the imperfections or distortions of an optical system that prevent it from producing perfect images. These aberrations can be caused by factors like lens curvature, refractive index variations, and irregularities in the lens surface, and they can result in image blurring, distortion, or other visual defects. In physics and biology, aberrations can refer to anomalies or deviations from expected behavior in particle behavior, genetic expression, or other natural phenomena. Overall, aberrations describe any non-standard or non-ideal behavior that deviates from the norm.