The phrase "high saturation" refers to a situation where something is full of intensity, richness, or strong color. It means there is a lot of something and it is vibrant or concentrated. Full definition
It does not, much like trying to breed out HD from within a closed pool with high saturation of the genes that cause it, remove the genes very fast. (border-wars.com)
Colors pop just a little more with higher saturation, but at no time do you enter the realms of unrealistic looking images. (androidcentral.com)
An LCD on the other hand, has a spectrum consisting of narrow red, green and blue lines, (this is how the display achieves high saturation). (blog.the-ebook-reader.com)