saturation vs suffusion

saturation and suffusion both are nouns.

Word	Noun	Adjective	Verb	Adverb
saturation	Yes	No	No	No
suffusion	Yes	No	No	No

As nouns, suffusion is a hypernym of saturation; that is, suffusion is a word with a broader meaning than saturation:

Other hypernyms of saturation include permeation, pervasion.

saturation (noun)	suffusion (noun)
the act of soaking thoroughly with a liquid	the process of permeating or infusing something with a substance
chromatic purity: freedom from dilution with white and hence vivid in hue
the process of totally saturating something with a substance
a condition in which a quantity no longer responds to some external influence