distortion
dis.tor.tion \dis-'to.r-sh*n\ \-shn*l, -sh*n-*l\ n 1: the act of distorting 2: the quality or state of being distorted or a product of distortion : as 2a: a lack of proportionality in an image resulting from defects in the opt ical system 2b: falsified reproduction caused by change in wave form of a signal - dis.tor.tion.al aj