chroma vs saturation

chroma and saturation both are nouns.

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

As nouns, chroma and saturation are synonyms defined as:

chroma and saturation: chromatic purity: freedom from dilution with white and hence vivid in hue

Other synonyms of chroma include intensity, vividness.

chroma (noun)	saturation (noun)
chromatic purity: freedom from dilution with white and hence vivid in hue	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