渗透 (pinyin: shèn tòu, written "shen tou" or "shentou") means (lit. and fig.) to permeate. Below: its meaning, pronunciation, stroke order, and example sentences, so you can learn how to read, say, and write 渗透.
Meaning
(lit. and fig.) to permeate
to seep into
(of a product, idea etc) to penetrate (in a population)