1. filled or saturated with a substance
2. made pregnant; fertilized
Usage: biological/medical

Examples

• The wood was impregnated with a waterproof coating.
• The fabric was impregnated with insect repellent.
• The soil became impregnated with chemicals from the factory.
• The sponge was impregnated with cleaning solution.
• The paper was impregnated with wax to make it waterproof.
• The female was impregnated during the breeding season.