What is "emulsion paint"

Usage examples of "emulsion paint".

The magnolia emulsion paint is scuffed, worn shiny where countless shoulders have rubbed against it and peppered with writing which he does not have time to read.

Here the white- painted walls that Susan so dislikes, covered with the cheap emulsion paint used by the builders who converted the house into flats.

I noticed that there were numerous scorch marks on the ceiling radiating out from the box, and although someone had put a coat of white emulsion paint over these they still showed through clearly.