percolationnoun [ U ]
/ˌpɜː.kəˈleɪ.ʃən//ˌpɝː.kəˈleɪ.ʃən/the process of a liquid moving slowly through a substance that has very small holes in it:
the percolation of water through rocks
the process of something spreading slowly:
So far we haven't seen much percolation of higher energy prices through to retail.