suffusion vs permeation

suffusion and permeation both are nouns.

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

As nouns, suffusion and permeation are synonyms defined as:

suffusion and permeation: the process of permeating or infusing something with a substance

Other synonyms of suffusion include pervasion.

suffusion (noun)	permeation (noun)
the process of permeating or infusing something with a substance	mutual penetration; diffusion of each through the other
	the process of permeating or infusing something with a substance