plastination vs impregnation

plastination and impregnation both are nouns.

Word	Noun	Adjective	Verb	Adverb
plastination	Yes	No	No	No
impregnation	Yes	No	No	No

plastination (noun)	impregnation (noun)
a process involving fixation and dehydration and forced impregnation and hardening of biological tissues; water and lipids are replaced by curable polymers (silicone or epoxy or polyester) that are subsequently hardened	creation by the physical union of male and female gametes; of sperm and ova in an animal or pollen and ovule in a plant
	the process of totally saturating something with a substance
	material with which something is impregnated