pixelation

Noun

Meaning

A blocky effect caused by enlarging a bitmap so that individual pixels can be distinguished.

The deliberate obscuring or censoring of part of an image by reducing the resolution, resulting in a blocky blur.

Source: en.wiktionary.org

Fios TV gives you brilliant picture quality with less pixelation than cable. Source: Internet

I couldn't find any information on google, and I really want to like this game, but pixelation just looks bad. Source: Internet

There just isn't enough space to work with the image there and we seem to be dealing with some pixelation issues. Source: Internet