the act of impregnating or the state of being impregnated; fecundation.-the fusion of a female germ cell (ovum) with a male germ cell (in animals, a spermatozoon) to form a single new cell endowed with the power of developing into a new individual; fertilization; fecundation.-that with which anything is impregnated.-intimate mixture; influsion; saturation.-an ore deposit, with indefinite boundaries, consisting of rock impregnated with ore.