percolation (n.)

• absorbency
• absorbent
• absorption
• access
• admission
• adsorbent
• adsorption
• assimilation
• blotter
• brewing
• chemisorption
• chemosorption
• clarification
• condensation
• deliquium
• digestion
• dissolution
• dissolving
• distillation
• drenching
• dribble
• drip
• dripping
• drop
• ducking
• effusion
• elution
• engrossment
• entrance
• entree
• entry
• excretion
• extraction
• extravasation
• exudation
• filtration
• fusing
• fusion
• import
• importation
• importing
• impregnation
• income
• incoming
• infiltration
• infusion
• ingress
• injection
• input
• insertion
• insinuation
• intake
• interpenetration
• introduction
• intrusion
• leaching
• leakage
• liquefaction
• maceration
• melting
• ooze
• oozing
• osmosis
• penetration
• permeation
• purification
• reception
• refinement
• running
• saturation
• screening
• seepage
• separation
• sifting
• soak
• soakage
• soaking
• solution
• sorption
• souse
• sousing
• spiritualization
• sponge
• straining
• sublimation
• sweating
• thawing
• transudation
• trickle
• weep
• weeping
• winnowing