infusion

Universal Words noun [C,U] 1 ~ of sth (into sth) (formal) the act of adding sth to sth else in order to make it stronger or more successful: a cash / capital infusion * an infusion of new talent into science education * The company needs an infusion of new blood (= new employees with new ideas). 2 a drink or medicine made by soaking herbs, etc. in hot water: an infusion of chamomile 3 [C,U] (medical) an act of slowly putting a drug or other substance into a person's VEIN; the drug that is used in this way