suffusion vs saturation

suffusion and saturation both are nouns.

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

As nouns, saturation is a hyponym of suffusion; that is, saturation is a word with a more specific, narrower meaning than suffusion:

Other hyponyms of suffusion include ammonification, carbonation, impregnation.

suffusion (noun)	saturation (noun)
the process of permeating or infusing something with a substance	the act of soaking thoroughly with a liquid
	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