interpenetrate vs interpenetration

interpenetrate is not a noun while interpenetration is a noun.

Word	Noun	Adjective	Verb	Adverb
interpenetrate	No	No	Yes	No
interpenetration	Yes	No	No	No

interpenetrate (noun)	interpenetration (noun)
	mutual penetration; diffusion of each through the other
	the action of penetrating between or among

interpenetrate (verb)	interpenetration (verb)
penetrate mutually or be interlocked
spread or diffuse through