1. (

• impregnation

) material with which something is impregnated; "the impregnation, whatever it was, had turned the rock blue" ;

2. (

• impregnation ,
• saturation

) the process of totally saturating something with a substance; "the impregnation of wood with preservative"; "the saturation of cotton with ether" ;

3. (

• fertilization ,
• fertilisation ,
• fecundation ,
• impregnation

) creation by the physical union of male and female gametes; of sperm and ova in an animal or pollen and ovule in a plant ;