Discolouration that affects the whole surface of an item – e.g. an entire sheet of newspaper or the entire varnish layer of a painting – and that has a yellow tinge.
![](https://aiccm.org.au/wp-content/uploads/2019/10/YellowedVarnishTRpreview-686x1024.jpg)
Discolouration that affects the whole surface of an item – e.g. an entire sheet of newspaper or the entire varnish layer of a painting – and that has a yellow tinge.