1. To incorporate a chemical into a porous material; such as, wood or cloth; especially, by soaking it thoroughly with a liquid: Mary impregnated her clothes with soap from a bottle as they were put into the washing machine.
2. To permeate something with a particular aura or tone, or to make something contain a particular quality: Jack's speech was impregnated with references to health and how to maintain it.
3. To make a woman or female animal in a state of carrying a developing fetus or fetuses within her body: Patricia's dog will be having puppies soon after being impregnated by the neighbor's male canine.