saturate vs saturation

saturate is not a noun while saturation is a noun.

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

saturate (noun)	saturation (noun)
	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

saturate (verb)	saturation (verb)
cause (a chemical compound, vapour, solution, magnetic material) to unite with the greatest possible amount of another substance
infuse or fill completely