impregnation (n.)
- brainwashing
- brewing
- conditioning
- conjugation
- cross-fertilization
- cross-pollination
- decoction
- dictation
- drenching
- ducking
- enrichment
- fecundation
- fertilization
- implantation
- impression
- inculcation
- indoctrination
- infiltration
- infusion
- injection
- inoculation
- insemination
- instillation
- instillment
- interpenetration
- isogamy
- leaching
- maceration
- penetration
- percolation
- permeation
- pervasion
- pollination
- saturation
- soak
- soakage
- soaking
- souse
- sousing
- suffusion
