Come learn 2000+ kanji and 6000+ vocabulary words with WaniKani.
noun, する verb
Immersed to the point where it's transparent, because it's so soaked... that is total permeation and soaking and osmosis.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
This face lotion is getting really popular because it deeply permeates into the skin.