infusion

(ĭn-fyo͞oˈzhən)

1. The act or process of infusing.
2. Something infused or introduced: an economy in need of regular capital infusions.
3. The liquid product obtained by infusing: prepared an infusion of medicinal herbs.
4. a. Introduction of a solution into the body through a vein for therapeutic purposes.
   b. The solution so introduced: a sucrose infusion.