infusion

noun

1. 1

   the act of infusing or introducing a certain modifying element or quality

   the team's continued success is attributable to a steady infusion of new talent

2. 2

   (medicine) the passive introduction of a substance (a fluid or drug or electrolyte) into a vein or between tissues (as by gravitational force)

3. 3

   the process of extracting certain active properties (as a drug from a plant) by steeping or soaking (usually in water)

4. 4

   a solution obtained by steeping or soaking a substance (usually in water)