pervasion vs permeation

pervasion and permeation both are nouns.

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

As nouns, pervasion and permeation are synonyms defined as:

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

Other synonyms of pervasion include suffusion.

pervasion (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