aberrations
ab-er-ra-tions
noun
Departures from what is normal, expected, or morally sound.
"His recent behaviour showed several worrying aberrations."
noun
Distortions in images caused by imperfect lenses or mirrors.
"Optical aberrations reduce the telescope's image quality."
Thesaurus
Synonyms: aberrance, aberrancy, deviance, distortion, optical aberration