| n. | 1. | The act of impregnating or the state of being impregnated; fecundation. |
| 2. | (Biol.) The fusion of a female germ cell (ovum) with a male germ cell (in animals, a spermatozoön) to form a single new cell endowed with the power of developing into a new individual; fertilization; fecundation. | |
| 3. | That with which anything is impregnated. | |
| 4. | Intimate mixture; infusion; saturation. | |
| 5. | (Mining) An ore deposit, with indefinite boundaries, consisting of rock impregnated with ore. |
| Noun | 1. | impregnation - material with which something is impregnated; "the impregnation, whatever it was, had turned the rock blue" |
| 2. | impregnation - the process of totally saturating something with a substance; "the impregnation of wood with preservative"; "the saturation of cotton with ether" Synonyms: saturation | |
| 3. | 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 |