impregnation

noun

1.
material with which something is impregnated
2.
the process of totally saturating something with a substance
saturation
Derived from:
impregnate
3.
creation by the physical union of male and female gametes; of sperm and ova in an animal or pollen and ovule in a plant
fecundation fertilisation fertilization
Derived from:
impregnate