percolation

/ˌpɜːrkəˈleɪʃən/
noun
  1. The process of a liquid or gas passing slowly through a porous material or small holes.
    • The percolation of oil through the rock layers took millions of years.
    • Soil percolation rates determine how quickly rainwater drains into the ground.
    • The percolation of water through the coffee grounds makes a rich brew.
  2. The gradual spread of something through a group or system.
    • The percolation of cultural trends across borders is easier than ever.
    • The percolation of new technology into everyday life has been rapid.
    • There was a slow percolation of information from the research team to the public.
What does "percolation" mean? | whatsthatwordmean | whatsthatwordmean