Permeation

Pronunciation: /ˈpɝˈmitˈaɪˌɑn/

Permeation (noun)

  1. The process in which a liquid or gas moves through a material, spreading from one side to the other.
  2. The movement of gas molecules through a barrier, often measured as a rate.

Examples

  • The permeation of water through the wall was slow.
  • Permeation of liquid through the filter improves cleanliness.